./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c0bce2603970e0a002a5b33cfd00ef3446011286 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:15:19,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:15:19,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:15:19,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:15:19,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:15:19,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:15:19,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:15:19,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:15:19,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:15:19,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:15:19,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:15:19,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:15:19,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:15:19,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:15:19,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:15:19,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:15:19,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:15:19,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:15:19,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:15:19,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:15:19,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:15:19,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:15:19,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:15:19,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:15:19,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:15:19,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:15:19,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:15:19,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:15:19,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:15:19,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:15:19,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:15:19,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:15:19,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:15:19,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:15:19,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:15:19,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:15:19,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:15:19,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:15:19,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:15:19,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:15:19,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:15:19,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:15:19,588 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:15:19,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:15:19,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:15:19,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:15:19,589 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:15:19,590 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:15:19,590 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:15:19,590 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:15:19,590 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:15:19,590 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:15:19,590 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:15:19,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:15:19,590 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:15:19,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:15:19,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:15:19,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:15:19,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:15:19,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:15:19,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:15:19,591 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:15:19,591 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:15:19,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:15:19,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:15:19,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:15:19,592 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:15:19,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:15:19,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:15:19,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:15:19,592 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:15:19,593 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:15:19,593 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bce2603970e0a002a5b33cfd00ef3446011286 [2019-12-07 18:15:19,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:15:19,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:15:19,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:15:19,701 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:15:19,701 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:15:19,702 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c [2019-12-07 18:15:19,738 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/data/e7a9d207b/04a73435097945d58b1783281eee2153/FLAGcbc092e5c [2019-12-07 18:15:20,057 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:15:20,058 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c [2019-12-07 18:15:20,062 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/data/e7a9d207b/04a73435097945d58b1783281eee2153/FLAGcbc092e5c [2019-12-07 18:15:20,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/data/e7a9d207b/04a73435097945d58b1783281eee2153 [2019-12-07 18:15:20,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:15:20,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:15:20,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:15:20,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:15:20,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:15:20,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4b4e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20, skipping insertion in model container [2019-12-07 18:15:20,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:15:20,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:15:20,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:15:20,194 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:15:20,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:15:20,250 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:15:20,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20 WrapperNode [2019-12-07 18:15:20,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:15:20,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:15:20,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:15:20,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:15:20,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:15:20,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:15:20,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:15:20,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:15:20,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... [2019-12-07 18:15:20,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:15:20,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:15:20,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:15:20,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:15:20,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:15:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:15:20,448 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:15:20,448 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 18:15:20,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:15:20 BoogieIcfgContainer [2019-12-07 18:15:20,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:15:20,450 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:15:20,450 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:15:20,452 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:15:20,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:15:20,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:15:20" (1/3) ... [2019-12-07 18:15:20,453 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61b8465d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:15:20, skipping insertion in model container [2019-12-07 18:15:20,453 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:15:20,453 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:15:20" (2/3) ... [2019-12-07 18:15:20,454 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61b8465d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:15:20, skipping insertion in model container [2019-12-07 18:15:20,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:15:20,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:15:20" (3/3) ... [2019-12-07 18:15:20,455 INFO L371 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig1.c [2019-12-07 18:15:20,483 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:15:20,483 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:15:20,483 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:15:20,483 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:15:20,483 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:15:20,483 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:15:20,483 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:15:20,483 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:15:20,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 18:15:20,505 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:15:20,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:20,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:20,509 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 18:15:20,510 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:15:20,510 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:15:20,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 18:15:20,511 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:15:20,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:20,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:20,511 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 18:15:20,511 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:15:20,516 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5; 10#L41true assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 6#L18true assume !(f_~k~0 > 1073741823); 13#L23-1true [2019-12-07 18:15:20,516 INFO L796 eck$LassoCheckResult]: Loop: 13#L23-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 13#L23-1true [2019-12-07 18:15:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:20,520 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2019-12-07 18:15:20,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:20,525 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54177843] [2019-12-07 18:15:20,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:20,599 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:20,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:20,600 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2019-12-07 18:15:20,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:20,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799914577] [2019-12-07 18:15:20,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:20,605 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:20,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:20,606 INFO L82 PathProgramCache]: Analyzing trace with hash 957453, now seen corresponding path program 1 times [2019-12-07 18:15:20,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:20,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283543350] [2019-12-07 18:15:20,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:20,616 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:20,665 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:20,666 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:20,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:20,666 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:20,666 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:20,666 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,666 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:20,666 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:20,666 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration1_Lasso [2019-12-07 18:15:20,666 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:20,667 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:20,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:20,791 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:20,792 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:20,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:20,801 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:20,802 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:20,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:20,809 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:20,809 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:20,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:20,815 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:20,815 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:20,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:20,822 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:20,822 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:20,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:20,829 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:20,829 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:20,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:20,836 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:20,836 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:20,840 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:20,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:20,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:32,881 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-12-07 18:15:32,886 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:32,887 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:32,887 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:32,887 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:32,887 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:32,887 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:32,887 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:32,887 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:32,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration1_Lasso [2019-12-07 18:15:32,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:32,888 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:32,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:32,958 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:32,961 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:32,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:32,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:32,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:32,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:32,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:32,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:32,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:32,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:32,973 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:32,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:32,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:32,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:32,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:32,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:32,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:32,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:32,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:32,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:32,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:32,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:32,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:32,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:32,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:32,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:32,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:32,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:32,990 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:32,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:32,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:32,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:32,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:32,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:32,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:32,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:32,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:32,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:33,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:33,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:33,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:33,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:33,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:33,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:33,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:33,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:33,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:33,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:33,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:33,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:33,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:33,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:33,021 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:33,021 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:33,031 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:33,041 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 18:15:33,042 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:33,045 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:33,048 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:15:33,048 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:33,049 INFO L512 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] [2019-12-07 18:15:33,054 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:15:33,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:33,087 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:15:33,088 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:33,100 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:33,101 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:33,113 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 [2019-12-07 18:15:33,113 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-12-07 18:15:33,168 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 49 states and 76 transitions. Complement of second has 7 states. [2019-12-07 18:15:33,168 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 [2019-12-07 18:15:33,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:15:33,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2019-12-07 18:15:33,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 1 letters. [2019-12-07 18:15:33,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:33,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 4 letters. Loop has 1 letters. [2019-12-07 18:15:33,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:33,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 18:15:33,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:33,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 76 transitions. [2019-12-07 18:15:33,177 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2019-12-07 18:15:33,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 20 states and 28 transitions. [2019-12-07 18:15:33,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-12-07 18:15:33,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2019-12-07 18:15:33,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2019-12-07 18:15:33,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:15:33,182 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-12-07 18:15:33,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2019-12-07 18:15:33,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2019-12-07 18:15:33,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 18:15:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2019-12-07 18:15:33,200 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-12-07 18:15:33,200 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-12-07 18:15:33,200 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:15:33,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2019-12-07 18:15:33,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-12-07 18:15:33,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:33,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:33,201 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 18:15:33,201 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:15:33,201 INFO L794 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 115#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 120#L18-1 assume !(f_~k~0 > 1073741823); 121#L23-3 [2019-12-07 18:15:33,201 INFO L796 eck$LassoCheckResult]: Loop: 121#L23-3 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 121#L23-3 [2019-12-07 18:15:33,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:33,201 INFO L82 PathProgramCache]: Analyzing trace with hash 32101, now seen corresponding path program 1 times [2019-12-07 18:15:33,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:33,202 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645634625] [2019-12-07 18:15:33,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:33,208 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:33,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:33,209 INFO L82 PathProgramCache]: Analyzing trace with hash 87, now seen corresponding path program 1 times [2019-12-07 18:15:33,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:33,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015252327] [2019-12-07 18:15:33,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:33,212 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:33,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:33,213 INFO L82 PathProgramCache]: Analyzing trace with hash 995187, now seen corresponding path program 1 times [2019-12-07 18:15:33,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:33,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357327952] [2019-12-07 18:15:33,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:33,219 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:33,240 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:33,240 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:33,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:33,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:33,240 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:33,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:33,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:33,240 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:33,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration2_Lasso [2019-12-07 18:15:33,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:33,241 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:33,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:33,316 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:33,316 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:33,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,319 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,323 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,323 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:33,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,330 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,330 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:33,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,336 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,336 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:33,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,343 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,344 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:33,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,352 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:33,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,359 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,360 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:33,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,366 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,366 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:33,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,372 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,373 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:33,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,379 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,379 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:33,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:33,386 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:33,386 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:33,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:33,390 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:33,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:33,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:45,489 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-12-07 18:15:45,495 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:45,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:45,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:45,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:45,495 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:45,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:45,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:45,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:45,495 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration2_Lasso [2019-12-07 18:15:45,495 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:45,496 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:45,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,569 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:45,569 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:45,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:45,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:45,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:45,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:45,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:45,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:45,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:45,587 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:45,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:45,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:45,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:45,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:45,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:45,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:45,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:45,594 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:45,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:45,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:45,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:45,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:45,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:45,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:45,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:45,621 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 18:15:45,621 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,627 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:45,631 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:15:45,632 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:45,632 INFO L512 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] [2019-12-07 18:15:45,638 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:15:45,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:45,675 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:15:45,675 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:45,682 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:45,682 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:45,682 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 [2019-12-07 18:15:45,682 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 18:15:45,710 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 24 states and 35 transitions. Complement of second has 6 states. [2019-12-07 18:15:45,711 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 [2019-12-07 18:15:45,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:15:45,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-12-07 18:15:45,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 1 letters. [2019-12-07 18:15:45,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:45,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 4 letters. Loop has 1 letters. [2019-12-07 18:15:45,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:45,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 18:15:45,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:45,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2019-12-07 18:15:45,714 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2019-12-07 18:15:45,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 21 states and 30 transitions. [2019-12-07 18:15:45,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-12-07 18:15:45,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2019-12-07 18:15:45,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2019-12-07 18:15:45,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:15:45,715 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-12-07 18:15:45,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2019-12-07 18:15:45,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2019-12-07 18:15:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 18:15:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2019-12-07 18:15:45,717 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2019-12-07 18:15:45,717 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2019-12-07 18:15:45,717 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:15:45,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2019-12-07 18:15:45,718 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:15:45,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:45,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:45,719 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 18:15:45,719 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:15:45,720 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 195#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 202#L18 assume !(f_~k~0 > 1073741823); 198#L23-1 assume !(f_~z~0 < f_~k~0); 196#L29-2 [2019-12-07 18:15:45,720 INFO L796 eck$LassoCheckResult]: Loop: 196#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 197#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 196#L29-2 [2019-12-07 18:15:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:45,720 INFO L82 PathProgramCache]: Analyzing trace with hash 957451, now seen corresponding path program 1 times [2019-12-07 18:15:45,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:45,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201712360] [2019-12-07 18:15:45,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:45,727 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:45,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:45,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 1 times [2019-12-07 18:15:45,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:45,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381483862] [2019-12-07 18:15:45,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:45,733 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:45,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:45,733 INFO L82 PathProgramCache]: Analyzing trace with hash 920111346, now seen corresponding path program 1 times [2019-12-07 18:15:45,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:45,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371272214] [2019-12-07 18:15:45,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:45,742 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:45,772 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:45,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:45,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:45,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:45,773 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:45,773 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:45,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:45,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:45,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration3_Lasso [2019-12-07 18:15:45,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:45,773 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:45,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,839 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:45,839 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:45,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:45,845 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:45,845 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:45,850 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:45,853 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:45,853 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:45,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:45,860 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:45,860 INFO L440 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=-14, ULTIMATE.start_f_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:45,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:45,866 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:45,866 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:45,870 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:45,872 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:45,872 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:45,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:45,878 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:45,878 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:45,882 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:45,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:45,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:45,951 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:15:45,952 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:45,952 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:45,952 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:45,952 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:45,952 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:45,953 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:45,953 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:45,953 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:45,953 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration3_Lasso [2019-12-07 18:15:45,953 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:45,953 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:45,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:45,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,015 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:46,015 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:46,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:46,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:46,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:46,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:46,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:46,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:46,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:46,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:46,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:46,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:46,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:46,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:46,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:46,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:46,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:46,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:46,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:46,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:46,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:46,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:46,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:46,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:46,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:46,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:46,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:46,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:46,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:46,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:46,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:46,048 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:46,056 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 18:15:46,056 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,058 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:46,060 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:15:46,060 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:46,060 INFO L512 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] [2019-12-07 18:15:46,063 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:15:46,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:46,081 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:46,081 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:46,092 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:46,092 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:46,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:46,103 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 [2019-12-07 18:15:46,103 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 18:15:46,123 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 20 states and 29 transitions. Complement of second has 6 states. [2019-12-07 18:15:46,123 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 [2019-12-07 18:15:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-12-07 18:15:46,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 18:15:46,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:46,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 18:15:46,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:46,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 4 letters. [2019-12-07 18:15:46,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:46,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2019-12-07 18:15:46,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:15:46,126 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 28 transitions. [2019-12-07 18:15:46,126 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 18:15:46,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 18:15:46,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2019-12-07 18:15:46,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:15:46,126 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2019-12-07 18:15:46,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2019-12-07 18:15:46,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-12-07 18:15:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 18:15:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2019-12-07 18:15:46,128 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2019-12-07 18:15:46,128 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2019-12-07 18:15:46,128 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:15:46,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2019-12-07 18:15:46,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:15:46,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:46,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:46,129 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 18:15:46,129 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:15:46,129 INFO L794 eck$LassoCheckResult]: Stem: 278#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 279#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 288#L18-1 assume !(f_~k~0 > 1073741823); 289#L23-3 assume !(f_~z~0 < f_~k~0); 277#L29-5 [2019-12-07 18:15:46,129 INFO L796 eck$LassoCheckResult]: Loop: 277#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 275#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 277#L29-5 [2019-12-07 18:15:46,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:46,130 INFO L82 PathProgramCache]: Analyzing trace with hash 995185, now seen corresponding path program 1 times [2019-12-07 18:15:46,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:46,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574358759] [2019-12-07 18:15:46,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,134 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:46,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:46,135 INFO L82 PathProgramCache]: Analyzing trace with hash 3112, now seen corresponding path program 1 times [2019-12-07 18:15:46,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:46,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728588388] [2019-12-07 18:15:46,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,139 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:46,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:46,139 INFO L82 PathProgramCache]: Analyzing trace with hash 956374936, now seen corresponding path program 1 times [2019-12-07 18:15:46,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:46,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428169793] [2019-12-07 18:15:46,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,148 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:46,177 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:46,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:46,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:46,177 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:46,177 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:46,177 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:46,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:46,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:46,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration4_Lasso [2019-12-07 18:15:46,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:46,178 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:46,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,231 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:46,231 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,236 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,236 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,242 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,242 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,248 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,248 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,254 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,261 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,261 INFO L440 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=-14} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,264 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:46,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,333 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:15:46,334 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:46,334 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:46,334 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:46,334 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:46,334 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:46,334 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:46,334 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:46,334 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:46,334 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration4_Lasso [2019-12-07 18:15:46,334 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:46,334 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:46,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,392 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:46,392 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:46,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:46,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:46,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:46,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:46,398 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:46,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:46,401 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:46,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:46,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:46,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:46,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:46,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:46,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:46,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:46,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:46,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:46,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:46,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:46,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:46,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:46,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:46,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:46,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:46,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:46,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:46,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:46,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:46,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:46,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:46,426 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:46,433 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-12-07 18:15:46,433 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:46,435 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:46,437 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:15:46,437 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:46,437 INFO L512 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] [2019-12-07 18:15:46,442 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:15:46,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:46,474 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:46,474 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:46,482 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:46,482 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:46,491 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 [2019-12-07 18:15:46,491 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 14 Second operand 4 states. [2019-12-07 18:15:46,512 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 24 states and 35 transitions. Complement of second has 6 states. [2019-12-07 18:15:46,512 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 [2019-12-07 18:15:46,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-12-07 18:15:46,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 18:15:46,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:46,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 18:15:46,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:46,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 4 letters. [2019-12-07 18:15:46,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:46,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2019-12-07 18:15:46,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:15:46,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 23 states and 34 transitions. [2019-12-07 18:15:46,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 18:15:46,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:15:46,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2019-12-07 18:15:46,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:15:46,515 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 34 transitions. [2019-12-07 18:15:46,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2019-12-07 18:15:46,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-12-07 18:15:46,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 18:15:46,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-07 18:15:46,517 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-07 18:15:46,517 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-07 18:15:46,517 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 18:15:46,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 33 transitions. [2019-12-07 18:15:46,517 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:15:46,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:46,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:46,518 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:15:46,518 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:15:46,518 INFO L794 eck$LassoCheckResult]: Stem: 371#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 372#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 383#L18 assume !(f_~k~0 > 1073741823); 378#L23-1 assume !(f_~z~0 < f_~k~0); 379#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 377#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 385#L30 [2019-12-07 18:15:46,518 INFO L796 eck$LassoCheckResult]: Loop: 385#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 373#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 374#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 385#L30 [2019-12-07 18:15:46,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:46,518 INFO L82 PathProgramCache]: Analyzing trace with hash 920111342, now seen corresponding path program 1 times [2019-12-07 18:15:46,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:46,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875773107] [2019-12-07 18:15:46,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,524 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:46,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:46,525 INFO L82 PathProgramCache]: Analyzing trace with hash 63396, now seen corresponding path program 1 times [2019-12-07 18:15:46,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:46,525 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687435865] [2019-12-07 18:15:46,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,529 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:46,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:46,530 INFO L82 PathProgramCache]: Analyzing trace with hash 555740055, now seen corresponding path program 1 times [2019-12-07 18:15:46,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:46,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553291055] [2019-12-07 18:15:46,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:46,538 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:46,552 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:46,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:46,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:46,552 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:46,552 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:46,552 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:46,552 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:46,552 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:46,552 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration5_Loop [2019-12-07 18:15:46,552 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:46,552 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:46,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,587 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:46,587 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,597 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:46,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,614 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,614 INFO L440 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=-2}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=4}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,621 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,621 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,631 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,631 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-5} Honda state: {ULTIMATE.start_f_#t~nondet3=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,637 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,638 INFO L440 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: [] [2019-12-07 18:15:46,663 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:46,664 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:46,664 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:46,664 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:46,664 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:46,664 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:46,664 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:46,664 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:46,664 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration5_Lasso [2019-12-07 18:15:46,664 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:46,664 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:46,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,730 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:46,730 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,736 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,736 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,742 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,742 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:46,749 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-5} Honda state: {ULTIMATE.start_f_#t~nondet3=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:46,752 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:46,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:46,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:46,947 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:15:46,949 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:46,949 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:46,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:46,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:46,949 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:46,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:46,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:46,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:46,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration5_Lasso [2019-12-07 18:15:46,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:46,949 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:46,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:46,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,019 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:47,019 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:47,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:47,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:47,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:47,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:47,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:47,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:47,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:47,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:47,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:47,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:47,036 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 18:15:47,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:47,037 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 18:15:47,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:47,038 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:47,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:47,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:47,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:47,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:47,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:47,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:47,050 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:47,054 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:15:47,054 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,056 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:47,058 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:15:47,058 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:47,058 INFO L512 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] [2019-12-07 18:15:47,061 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:15:47,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:47,080 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:47,080 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:47,086 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:47,087 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:47,103 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 [2019-12-07 18:15:47,103 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 33 transitions. cyclomatic complexity: 17 Second operand 5 states. [2019-12-07 18:15:47,129 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 33 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 32 states and 46 transitions. Complement of second has 7 states. [2019-12-07 18:15:47,129 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 [2019-12-07 18:15:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 18:15:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2019-12-07 18:15:47,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 18:15:47,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:47,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 18:15:47,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:47,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 18:15:47,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:47,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 46 transitions. [2019-12-07 18:15:47,131 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-12-07 18:15:47,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 28 states and 41 transitions. [2019-12-07 18:15:47,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 18:15:47,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:15:47,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 41 transitions. [2019-12-07 18:15:47,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:15:47,133 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-07 18:15:47,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 41 transitions. [2019-12-07 18:15:47,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2019-12-07 18:15:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:15:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2019-12-07 18:15:47,135 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2019-12-07 18:15:47,135 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2019-12-07 18:15:47,135 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 18:15:47,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 40 transitions. [2019-12-07 18:15:47,135 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-12-07 18:15:47,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:47,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:47,136 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:15:47,136 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:15:47,136 INFO L794 eck$LassoCheckResult]: Stem: 487#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 488#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 496#L18-1 assume !(f_~k~0 > 1073741823); 497#L23-3 assume !(f_~z~0 < f_~k~0); 505#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 483#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 484#L30-1 [2019-12-07 18:15:47,136 INFO L796 eck$LassoCheckResult]: Loop: 484#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 501#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 502#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 484#L30-1 [2019-12-07 18:15:47,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:47,137 INFO L82 PathProgramCache]: Analyzing trace with hash 956374932, now seen corresponding path program 1 times [2019-12-07 18:15:47,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:47,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763875072] [2019-12-07 18:15:47,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,144 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:47,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:47,144 INFO L82 PathProgramCache]: Analyzing trace with hash 101130, now seen corresponding path program 1 times [2019-12-07 18:15:47,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:47,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088777161] [2019-12-07 18:15:47,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,151 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:47,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:47,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1447371113, now seen corresponding path program 1 times [2019-12-07 18:15:47,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:47,151 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755477057] [2019-12-07 18:15:47,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,159 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:47,174 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:47,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:47,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:47,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:47,174 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:47,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:47,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:47,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration6_Loop [2019-12-07 18:15:47,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:47,175 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:47,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,209 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:47,209 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,215 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,215 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-5} Honda state: {ULTIMATE.start_f_#t~nondet3=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,219 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:47,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,235 INFO L440 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=-2}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=4}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,242 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,242 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,249 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,249 INFO L440 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: [] [2019-12-07 18:15:47,275 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:47,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:47,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:47,275 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:47,275 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:47,275 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:47,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:47,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration6_Lasso [2019-12-07 18:15:47,276 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:47,276 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:47,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,344 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:47,344 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,347 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:47,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,366 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,366 INFO L440 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=-5} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=6, ULTIMATE.start_f_~k~0=-6}, {ULTIMATE.start_f_~z~0=-6, ULTIMATE.start_f_~k~0=1}, {ULTIMATE.start_f_~z~0=-1, ULTIMATE.start_f_~k~0=5}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,373 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,373 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,379 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,379 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,385 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,385 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,391 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,399 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,399 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,405 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,405 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-5} Honda state: {ULTIMATE.start_f_#t~nondet3=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/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 [2019-12-07 18:15:47,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,409 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,412 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,412 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,416 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:47,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,587 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:15:47,588 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:47,588 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:47,588 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:47,588 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:47,588 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:47,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:47,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:47,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration6_Lasso [2019-12-07 18:15:47,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:47,589 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:47,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,658 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:47,659 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:47,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:47,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:47,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:47,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:47,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:47,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:47,670 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:47,673 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:15:47,673 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,676 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:47,677 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2019-12-07 18:15:47,677 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:47,677 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0, 1*ULTIMATE.start_f_~x~0 - 1 >= 0] [2019-12-07 18:15:47,681 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-12-07 18:15:47,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:47,698 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:47,698 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:47,705 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:47,705 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:47,727 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 [2019-12-07 18:15:47,727 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 20 Second operand 5 states. [2019-12-07 18:15:47,762 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 37 states and 53 transitions. Complement of second has 7 states. [2019-12-07 18:15:47,762 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 [2019-12-07 18:15:47,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 18:15:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2019-12-07 18:15:47,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 18:15:47,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:47,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 18:15:47,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:47,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 18:15:47,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:47,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 53 transitions. [2019-12-07 18:15:47,764 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 18:15:47,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 48 transitions. [2019-12-07 18:15:47,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 18:15:47,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:15:47,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 48 transitions. [2019-12-07 18:15:47,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:15:47,765 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 48 transitions. [2019-12-07 18:15:47,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 48 transitions. [2019-12-07 18:15:47,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-12-07 18:15:47,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 18:15:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 47 transitions. [2019-12-07 18:15:47,766 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2019-12-07 18:15:47,766 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2019-12-07 18:15:47,766 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 18:15:47,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 47 transitions. [2019-12-07 18:15:47,767 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 18:15:47,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:47,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:47,767 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:15:47,767 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:15:47,767 INFO L794 eck$LassoCheckResult]: Stem: 617#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 618#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 628#L18 assume !(f_~k~0 > 1073741823); 623#L23-1 assume !(f_~z~0 < f_~k~0); 624#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 641#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 636#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 637#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 642#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 619#L29-2 [2019-12-07 18:15:47,767 INFO L796 eck$LassoCheckResult]: Loop: 619#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 620#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 619#L29-2 [2019-12-07 18:15:47,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:47,768 INFO L82 PathProgramCache]: Analyzing trace with hash 555740059, now seen corresponding path program 1 times [2019-12-07 18:15:47,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:47,768 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269256148] [2019-12-07 18:15:47,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,775 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:47,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:47,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 2 times [2019-12-07 18:15:47,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:47,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833162286] [2019-12-07 18:15:47,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,779 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:47,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:47,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1490252930, now seen corresponding path program 2 times [2019-12-07 18:15:47,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:47,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093558947] [2019-12-07 18:15:47,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:47,787 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:47,844 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:47,844 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:47,844 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:47,844 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:47,844 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:47,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:47,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:47,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration7_Lasso [2019-12-07 18:15:47,845 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:47,845 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:47,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,907 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:47,907 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,913 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,913 INFO L440 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=0, ULTIMATE.start_f_~k~0=-14} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,924 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:47,924 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:47,928 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:47,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:47,968 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:15:47,969 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:47,970 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:47,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:47,970 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:47,970 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:47,970 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:47,970 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:47,970 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:47,970 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration7_Lasso [2019-12-07 18:15:47,970 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:47,970 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:47,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:47,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,026 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:48,027 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,031 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:48,031 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:48,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,043 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,057 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:48,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:48,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,071 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,083 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:48,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:48,088 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:48,094 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 18:15:48,094 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,097 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:48,098 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:15:48,099 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:48,099 INFO L512 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] [2019-12-07 18:15:48,101 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:15:48,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:48,119 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:48,119 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:48,128 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:48,129 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:48,136 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 [2019-12-07 18:15:48,136 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 47 transitions. cyclomatic complexity: 23 Second operand 4 states. [2019-12-07 18:15:48,158 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 47 transitions. cyclomatic complexity: 23. Second operand 4 states. Result 50 states and 69 transitions. Complement of second has 6 states. [2019-12-07 18:15:48,158 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 [2019-12-07 18:15:48,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-12-07 18:15:48,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 18:15:48,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:48,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 18:15:48,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:48,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 4 letters. [2019-12-07 18:15:48,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:48,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 69 transitions. [2019-12-07 18:15:48,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 18:15:48,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 42 states and 59 transitions. [2019-12-07 18:15:48,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-12-07 18:15:48,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-12-07 18:15:48,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 59 transitions. [2019-12-07 18:15:48,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:15:48,160 INFO L688 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2019-12-07 18:15:48,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 59 transitions. [2019-12-07 18:15:48,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2019-12-07 18:15:48,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-07 18:15:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 57 transitions. [2019-12-07 18:15:48,162 INFO L711 BuchiCegarLoop]: Abstraction has 40 states and 57 transitions. [2019-12-07 18:15:48,162 INFO L591 BuchiCegarLoop]: Abstraction has 40 states and 57 transitions. [2019-12-07 18:15:48,163 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 18:15:48,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 57 transitions. [2019-12-07 18:15:48,163 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 18:15:48,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:48,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:48,163 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:15:48,163 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:15:48,164 INFO L794 eck$LassoCheckResult]: Stem: 764#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 765#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 773#L18-1 assume !(f_~k~0 > 1073741823); 774#L23-3 assume !(f_~z~0 < f_~k~0); 788#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 790#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 780#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 781#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 791#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 761#L29-5 [2019-12-07 18:15:48,164 INFO L796 eck$LassoCheckResult]: Loop: 761#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 760#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 761#L29-5 [2019-12-07 18:15:48,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:48,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1447371109, now seen corresponding path program 1 times [2019-12-07 18:15:48,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:48,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084118724] [2019-12-07 18:15:48,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,170 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:48,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:48,171 INFO L82 PathProgramCache]: Analyzing trace with hash 3112, now seen corresponding path program 2 times [2019-12-07 18:15:48,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:48,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959731404] [2019-12-07 18:15:48,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,173 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:48,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:48,174 INFO L82 PathProgramCache]: Analyzing trace with hash 645770306, now seen corresponding path program 2 times [2019-12-07 18:15:48,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:48,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793302385] [2019-12-07 18:15:48,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,181 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:48,242 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:48,242 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:48,243 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:48,243 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:48,243 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:48,243 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,243 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:48,243 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:48,243 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration8_Lasso [2019-12-07 18:15:48,243 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:48,243 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:48,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,315 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:48,315 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,320 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,320 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,324 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:48,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,390 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:15:48,391 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:48,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:48,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:48,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:48,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:48,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:48,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:48,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration8_Lasso [2019-12-07 18:15:48,391 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:48,391 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:48,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,446 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:48,446 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:48,457 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:48,462 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:48,467 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:15:48,467 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,470 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:48,472 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:15:48,472 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:48,472 INFO L512 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] [2019-12-07 18:15:48,474 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:15:48,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:48,492 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:48,493 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:48,499 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:48,499 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:48,507 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 [2019-12-07 18:15:48,507 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 57 transitions. cyclomatic complexity: 27 Second operand 4 states. [2019-12-07 18:15:48,527 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 57 transitions. cyclomatic complexity: 27. Second operand 4 states. Result 58 states and 79 transitions. Complement of second has 6 states. [2019-12-07 18:15:48,527 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 [2019-12-07 18:15:48,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:48,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-12-07 18:15:48,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 18:15:48,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:48,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 18:15:48,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:48,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 4 letters. [2019-12-07 18:15:48,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:48,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 79 transitions. [2019-12-07 18:15:48,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 18:15:48,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 50 states and 69 transitions. [2019-12-07 18:15:48,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 18:15:48,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 18:15:48,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 69 transitions. [2019-12-07 18:15:48,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:15:48,530 INFO L688 BuchiCegarLoop]: Abstraction has 50 states and 69 transitions. [2019-12-07 18:15:48,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 69 transitions. [2019-12-07 18:15:48,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2019-12-07 18:15:48,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-12-07 18:15:48,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2019-12-07 18:15:48,532 INFO L711 BuchiCegarLoop]: Abstraction has 48 states and 67 transitions. [2019-12-07 18:15:48,532 INFO L591 BuchiCegarLoop]: Abstraction has 48 states and 67 transitions. [2019-12-07 18:15:48,532 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 18:15:48,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 67 transitions. [2019-12-07 18:15:48,533 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 18:15:48,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:48,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:48,533 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2019-12-07 18:15:48,533 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:15:48,533 INFO L794 eck$LassoCheckResult]: Stem: 927#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 928#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 938#L18 assume !(f_~k~0 > 1073741823); 934#L23-1 assume !(f_~z~0 < f_~k~0); 929#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 930#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 962#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 955#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 956#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 960#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 959#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 943#L29-2 [2019-12-07 18:15:48,533 INFO L796 eck$LassoCheckResult]: Loop: 943#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 942#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 943#L29-2 [2019-12-07 18:15:48,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:48,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1600239380, now seen corresponding path program 3 times [2019-12-07 18:15:48,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:48,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149892899] [2019-12-07 18:15:48,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,541 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:48,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:48,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 3 times [2019-12-07 18:15:48,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:48,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317929006] [2019-12-07 18:15:48,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,544 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:48,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:48,544 INFO L82 PathProgramCache]: Analyzing trace with hash 231753147, now seen corresponding path program 4 times [2019-12-07 18:15:48,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:48,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074631747] [2019-12-07 18:15:48,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:48,552 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:48,614 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:48,614 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:48,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:48,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:48,615 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:48,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,615 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:48,615 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:48,615 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration9_Lasso [2019-12-07 18:15:48,615 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:48,615 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:48,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,671 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:48,671 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,676 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,676 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,683 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,683 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,690 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,690 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,696 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,696 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,703 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,708 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,715 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,715 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,721 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,721 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,727 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:48,727 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:48,732 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:48,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:48,792 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:15:48,793 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:48,793 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:48,793 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:48,793 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:48,793 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:48,793 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,793 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:48,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:48,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration9_Lasso [2019-12-07 18:15:48,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:48,793 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:48,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:48,849 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:48,849 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 123 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 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,866 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 124 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 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:48,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:48,874 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 125 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,879 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,880 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 126 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 127 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 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 128 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:48,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:48,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 129 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 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,909 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:48,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:48,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:48,913 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 130 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:48,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:48,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:48,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:48,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:48,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:48,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:48,923 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:48,930 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 18:15:48,930 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 131 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:48,932 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:48,934 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:15:48,934 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:48,934 INFO L512 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] [2019-12-07 18:15:48,937 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:15:48,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:48,955 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:48,956 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:48,973 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:48,973 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:48,981 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 [2019-12-07 18:15:48,981 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31 Second operand 4 states. [2019-12-07 18:15:49,002 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 56 states and 75 transitions. Complement of second has 6 states. [2019-12-07 18:15:49,002 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 [2019-12-07 18:15:49,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-12-07 18:15:49,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 18:15:49,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,003 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:15:49,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,020 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,020 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,027 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,027 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:49,035 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 [2019-12-07 18:15:49,035 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31 Second operand 4 states. [2019-12-07 18:15:49,052 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 56 states and 75 transitions. Complement of second has 6 states. [2019-12-07 18:15:49,053 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 [2019-12-07 18:15:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-12-07 18:15:49,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 18:15:49,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,053 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:15:49,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,070 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,071 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,077 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,077 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:49,088 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 [2019-12-07 18:15:49,088 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31 Second operand 4 states. [2019-12-07 18:15:49,107 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 59 states and 80 transitions. Complement of second has 5 states. [2019-12-07 18:15:49,107 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 [2019-12-07 18:15:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2019-12-07 18:15:49,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 18:15:49,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 13 letters. Loop has 2 letters. [2019-12-07 18:15:49,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2019-12-07 18:15:49,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 80 transitions. [2019-12-07 18:15:49,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:15:49,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 25 states and 34 transitions. [2019-12-07 18:15:49,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-12-07 18:15:49,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 18:15:49,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2019-12-07 18:15:49,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:15:49,110 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-07 18:15:49,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2019-12-07 18:15:49,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-07 18:15:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 18:15:49,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-07 18:15:49,111 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-07 18:15:49,111 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-07 18:15:49,111 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-12-07 18:15:49,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2019-12-07 18:15:49,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:15:49,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:15:49,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:15:49,112 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2019-12-07 18:15:49,112 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:15:49,112 INFO L794 eck$LassoCheckResult]: Stem: 1314#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 1315#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1316#L18-1 assume !(f_~k~0 > 1073741823); 1317#L23-3 assume !(f_~z~0 < f_~k~0); 1320#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1321#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1333#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1332#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 1330#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1329#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1327#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1326#L29-5 [2019-12-07 18:15:49,112 INFO L796 eck$LassoCheckResult]: Loop: 1326#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1325#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1326#L29-5 [2019-12-07 18:15:49,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:49,113 INFO L82 PathProgramCache]: Analyzing trace with hash 755756756, now seen corresponding path program 3 times [2019-12-07 18:15:49,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:49,113 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000998953] [2019-12-07 18:15:49,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:49,120 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:49,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:49,121 INFO L82 PathProgramCache]: Analyzing trace with hash 3112, now seen corresponding path program 3 times [2019-12-07 18:15:49,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:49,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517107669] [2019-12-07 18:15:49,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:49,123 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:49,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:49,123 INFO L82 PathProgramCache]: Analyzing trace with hash 432771643, now seen corresponding path program 4 times [2019-12-07 18:15:49,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:15:49,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903187398] [2019-12-07 18:15:49,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:15:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:15:49,131 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:15:49,194 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:49,194 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:49,194 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:49,195 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:49,195 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:15:49,195 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,195 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:49,195 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:49,195 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration10_Lasso [2019-12-07 18:15:49,195 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:49,195 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:49,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,255 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:49,256 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 132 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 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:49,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:49,261 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:49,261 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 133 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 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:49,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:49,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:49,267 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 134 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 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:49,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:49,275 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:49,275 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 135 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 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:49,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:49,281 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:15:49,281 INFO L440 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/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 136 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 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:15:49,284 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 137 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 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:15:49,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:15:49,352 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:15:49,353 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:15:49,353 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:15:49,354 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:15:49,354 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:15:49,354 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:15:49,354 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,354 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:15:49,354 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:15:49,354 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1.c_Iteration10_Lasso [2019-12-07 18:15:49,354 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:15:49,354 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:15:49,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:15:49,413 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:15:49,413 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 138 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 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:49,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:49,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:49,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:49,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:49,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:49,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:49,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 139 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 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:49,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:49,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:49,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:49,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:49,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:49,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:49,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:49,428 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 140 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 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:49,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:49,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:49,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:49,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:49,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:49,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:49,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 141 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 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:49,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:49,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:15:49,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:49,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:49,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:49,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:15:49,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:15:49,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 142 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 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:15:49,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:15:49,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:15:49,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:15:49,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:15:49,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:15:49,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:15:49,458 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:15:49,464 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 18:15:49,464 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_312dd803-4a3e-42bd-86fb-d5780219c546/bin/uautomizer/z3 Starting monitored process 143 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 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:15:49,467 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:15:49,470 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:15:49,470 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:15:49,470 INFO L512 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] [2019-12-07 18:15:49,473 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:15:49,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,490 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,491 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,497 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,497 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:49,504 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 [2019-12-07 18:15:49,504 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-12-07 18:15:49,522 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 33 states and 42 transitions. Complement of second has 6 states. [2019-12-07 18:15:49,522 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 [2019-12-07 18:15:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:49,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-12-07 18:15:49,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 18:15:49,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,523 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:15:49,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,538 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,539 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,544 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,545 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:49,552 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 [2019-12-07 18:15:49,552 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-12-07 18:15:49,567 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 33 states and 42 transitions. Complement of second has 6 states. [2019-12-07 18:15:49,568 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 [2019-12-07 18:15:49,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:49,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-12-07 18:15:49,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 18:15:49,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,568 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:15:49,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:15:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,585 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,585 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:15:49,601 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:15:49,602 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:15:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:15:49,609 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 [2019-12-07 18:15:49,610 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-12-07 18:15:49,625 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 36 states and 47 transitions. Complement of second has 5 states. [2019-12-07 18:15:49,625 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 [2019-12-07 18:15:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:15:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2019-12-07 18:15:49,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 18:15:49,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 2 letters. [2019-12-07 18:15:49,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 4 letters. [2019-12-07 18:15:49,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:15:49,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2019-12-07 18:15:49,627 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:15:49,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2019-12-07 18:15:49,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:15:49,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:15:49,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:15:49,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:15:49,627 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:15:49,627 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:15:49,627 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:15:49,627 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-12-07 18:15:49,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:15:49,627 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:15:49,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:15:49,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:15:49 BoogieIcfgContainer [2019-12-07 18:15:49,631 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:15:49,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:15:49,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:15:49,632 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:15:49,632 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:15:20" (3/4) ... [2019-12-07 18:15:49,634 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:15:49,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:15:49,635 INFO L168 Benchmark]: Toolchain (without parser) took 29561.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 933.9 MB in the beginning and 1.0 GB in the end (delta: -88.3 MB). Peak memory consumption was 127.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:15:49,636 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:15:49,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -202.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:15:49,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:15:49,636 INFO L168 Benchmark]: Boogie Preprocessor took 14.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:15:49,636 INFO L168 Benchmark]: RCFGBuilder took 160.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:15:49,637 INFO L168 Benchmark]: BuchiAutomizer took 29182.02 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 94.6 MB). Peak memory consumption was 170.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:15:49,637 INFO L168 Benchmark]: Witness Printer took 2.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:15:49,638 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -202.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 160.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 29182.02 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 94.6 MB). Peak memory consumption was 170.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 29.1s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 28.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 22 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 48 states and ocurred in iteration 8. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 182 SDtfs, 281 SDslu, 59 SDs, 0 SdLazy, 139 SolverSat, 67 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: 38ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 59 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 25.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...