./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.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_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 0455ba49274114922cfe1b7739d9cb0a89e6c868 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:39:15,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:39:15,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:39:15,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:39:15,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:39:15,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:39:15,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:39:15,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:39:15,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:39:15,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:39:15,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:39:15,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:39:15,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:39:15,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:39:15,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:39:15,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:39:15,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:39:15,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:39:15,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:39:15,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:39:15,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:39:15,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:39:15,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:39:15,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:39:15,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:39:15,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:39:15,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:39:15,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:39:15,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:39:15,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:39:15,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:39:15,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:39:15,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:39:15,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:39:15,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:39:15,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:39:15,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:39:15,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:39:15,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:39:15,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:39:15,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:39:15,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 16:39:15,534 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:39:15,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:39:15,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:39:15,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:39:15,535 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:39:15,536 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 16:39:15,536 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 16:39:15,536 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 16:39:15,536 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 16:39:15,536 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 16:39:15,536 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 16:39:15,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:39:15,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:39:15,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:39:15,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:39:15,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 16:39:15,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 16:39:15,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 16:39:15,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:39:15,538 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 16:39:15,538 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:39:15,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 16:39:15,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:39:15,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:39:15,539 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 16:39:15,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:39:15,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:39:15,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:39:15,540 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 16:39:15,541 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 16:39:15,541 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_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 -> 0455ba49274114922cfe1b7739d9cb0a89e6c868 [2019-12-07 16:39:15,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:39:15,660 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:39:15,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:39:15,663 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:39:15,664 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:39:15,664 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2019-12-07 16:39:15,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/data/c20159e3d/b86e8727d76340ebb6011f31bd7b249f/FLAGdac158e01 [2019-12-07 16:39:16,060 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:39:16,060 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2019-12-07 16:39:16,064 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/data/c20159e3d/b86e8727d76340ebb6011f31bd7b249f/FLAGdac158e01 [2019-12-07 16:39:16,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/data/c20159e3d/b86e8727d76340ebb6011f31bd7b249f [2019-12-07 16:39:16,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:39:16,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:39:16,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:39:16,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:39:16,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:39:16,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7671b8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16, skipping insertion in model container [2019-12-07 16:39:16,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:39:16,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:39:16,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:39:16,196 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:39:16,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:39:16,249 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:39:16,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16 WrapperNode [2019-12-07 16:39:16,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:39:16,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:39:16,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:39:16,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:39:16,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:39:16,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:39:16,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:39:16,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:39:16,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... [2019-12-07 16:39:16,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:39:16,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:39:16,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:39:16,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:39:16,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:39:16,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:39:16,408 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:39:16,408 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 16:39:16,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:39:16 BoogieIcfgContainer [2019-12-07 16:39:16,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:39:16,409 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 16:39:16,409 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 16:39:16,411 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 16:39:16,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:39:16,412 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 04:39:16" (1/3) ... [2019-12-07 16:39:16,413 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@438ed9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:39:16, skipping insertion in model container [2019-12-07 16:39:16,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:39:16,413 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:16" (2/3) ... [2019-12-07 16:39:16,413 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@438ed9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:39:16, skipping insertion in model container [2019-12-07 16:39:16,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:39:16,413 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:39:16" (3/3) ... [2019-12-07 16:39:16,414 INFO L371 chiAutomizerObserver]: Analyzing ICFG GopanReps-CAV2006-Fig1a.c [2019-12-07 16:39:16,443 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 16:39:16,443 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 16:39:16,443 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 16:39:16,443 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:39:16,443 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:39:16,443 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 16:39:16,443 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:39:16,443 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 16:39:16,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 16:39:16,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:39:16,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:39:16,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:39:16,468 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 16:39:16,468 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:39:16,468 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 16:39:16,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 16:39:16,469 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:39:16,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:39:16,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:39:16,469 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 16:39:16,470 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:39:16,474 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 6#L18-2true [2019-12-07 16:39:16,474 INFO L796 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~y~0 >= 0); 9#L19true assume main_~x~0 <= 50;main_~y~0 := 1 + main_~y~0; 7#L19-2true main_~x~0 := 1 + main_~x~0; 6#L18-2true [2019-12-07 16:39:16,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:16,478 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 16:39:16,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:16,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361925482] [2019-12-07 16:39:16,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:16,544 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:39:16,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:16,545 INFO L82 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2019-12-07 16:39:16,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:16,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061143776] [2019-12-07 16:39:16,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:16,556 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:39:16,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:16,557 INFO L82 PathProgramCache]: Analyzing trace with hash 963342, now seen corresponding path program 1 times [2019-12-07 16:39:16,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:16,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877956603] [2019-12-07 16:39:16,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:16,566 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:39:16,599 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:39:16,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:39:16,600 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:39:16,600 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:39:16,600 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:39:16,600 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:39:16,600 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:39:16,600 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:39:16,600 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration1_Loop [2019-12-07 16:39:16,600 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:39:16,600 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:39:16,615 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 16:39:16,622 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 16:39:16,625 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 16:39:16,632 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 16:39:16,703 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:39:16,703 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:39:16,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:39:16,715 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:39:16,715 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:39:16,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:39:16,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:39:16,723 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:39:16,726 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:39:16,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:39:16,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:39:16,746 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=1}, {ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=0}] Lambdas: [1, 7, 7] Nus: [1, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:39:16,750 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:39:16,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:39:16,763 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:39:16,764 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:39:16,764 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:39:16,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:39:16,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:39:16,765 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:39:16,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:39:16,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:39:16,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:39:16,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration1_Loop [2019-12-07 16:39:16,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:39:16,765 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:39:16,766 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 16:39:16,769 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 16:39:16,771 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 16:39:16,776 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 16:39:16,819 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:39:16,822 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,826 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 16:39:16,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:39:16,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:39:16,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:39:16,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:39:16,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:39:16,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:39:16,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,839 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 16:39:16,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:39:16,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:39:16,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:39:16,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:39:16,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:39:16,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:39:16,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,850 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 16:39:16,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:39:16,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:39:16,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:39:16,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:39:16,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:39:16,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:39:16,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:39:16,856 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,859 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 16:39:16,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:39:16,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:39:16,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:39:16,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:39:16,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:39:16,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:39:16,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:39:16,865 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:39:16,869 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:39:16,869 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:16,875 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:39:16,875 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:39:16,875 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:39:16,875 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 101 Supporting invariants [] [2019-12-07 16:39:16,878 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:39:16,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:16,905 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:39:16,906 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:16,912 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:39:16,912 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:16,922 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 16:39:16,933 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 16:39:16,934 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 4 states. [2019-12-07 16:39:16,963 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 4 states. Result 25 states and 35 transitions. Complement of second has 7 states. [2019-12-07 16:39:16,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 16:39:16,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 16:39:16,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-12-07 16:39:16,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 3 letters. [2019-12-07 16:39:16,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:16,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 3 letters. [2019-12-07 16:39:16,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:16,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 6 letters. [2019-12-07 16:39:16,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:16,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2019-12-07 16:39:16,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:39:16,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 11 states and 14 transitions. [2019-12-07 16:39:16,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 16:39:16,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-12-07 16:39:16,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-12-07 16:39:16,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:39:16,973 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 16:39:16,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-12-07 16:39:16,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-12-07 16:39:16,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 16:39:16,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-12-07 16:39:16,990 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 16:39:16,991 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 16:39:16,991 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 16:39:16,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-12-07 16:39:16,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:39:16,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:39:16,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:39:16,992 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 16:39:16,992 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:39:16,992 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 77#L18-2 assume !!(main_~y~0 >= 0); 73#L19 [2019-12-07 16:39:16,992 INFO L796 eck$LassoCheckResult]: Loop: 73#L19 assume !(main_~x~0 <= 50);main_~y~0 := main_~y~0 - 1; 78#L19-2 main_~x~0 := 1 + main_~x~0; 72#L18-2 assume !!(main_~y~0 >= 0); 73#L19 [2019-12-07 16:39:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:16,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 16:39:16,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:16,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324499599] [2019-12-07 16:39:16,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:16,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:39:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:16,996 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2019-12-07 16:39:16,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:16,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172263695] [2019-12-07 16:39:16,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:17,002 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:39:17,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:17,002 INFO L82 PathProgramCache]: Analyzing trace with hash 29865534, now seen corresponding path program 1 times [2019-12-07 16:39:17,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:17,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294310753] [2019-12-07 16:39:17,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:39:17,023 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294310753] [2019-12-07 16:39:17,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:39:17,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:39:17,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782260290] [2019-12-07 16:39:17,037 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:39:17,038 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:39:17,038 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:39:17,038 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:39:17,038 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:39:17,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:39:17,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:39:17,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:39:17,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration2_Loop [2019-12-07 16:39:17,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:39:17,038 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:39:17,039 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 16:39:17,041 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 16:39:17,043 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 16:39:17,047 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 16:39:17,081 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:39:17,081 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:39:17,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:39:17,089 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:39:17,089 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:39:17,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:39:17,096 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:39:17,096 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:39:17,101 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:39:17,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:39:17,114 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:39:17,114 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=51} Honda state: {ULTIMATE.start_main_~x~0=51} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:39:17,118 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:39:17,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:39:17,150 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:39:17,152 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:39:17,152 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:39:17,152 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:39:17,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:39:17,152 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:39:17,152 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:39:17,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:39:17,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:39:17,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration2_Loop [2019-12-07 16:39:17,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:39:17,152 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:39:17,153 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 16:39:17,156 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 16:39:17,160 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 16:39:17,163 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 16:39:17,198 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:39:17,198 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,201 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 16:39:17,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:39:17,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:39:17,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:39:17,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:39:17,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:39:17,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:39:17,208 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,211 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 16:39:17,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:39:17,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:39:17,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:39:17,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:39:17,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:39:17,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:39:17,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:39:17,215 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,219 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 16:39:17,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:39:17,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:39:17,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:39:17,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:39:17,223 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:39:17,224 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:39:17,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,231 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 16:39:17,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:39:17,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:39:17,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:39:17,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:39:17,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:39:17,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:39:17,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:39:17,236 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:39:17,238 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-12-07 16:39:17,239 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,243 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:39:17,244 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:39:17,244 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:39:17,244 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 16:39:17,245 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:39:17,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,258 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:39:17,259 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,262 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:39:17,263 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:17,276 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 16:39:17,277 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 16:39:17,277 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-12-07 16:39:17,293 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2019-12-07 16:39:17,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:39:17,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:39:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 16:39:17,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 3 letters. [2019-12-07 16:39:17,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:17,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 16:39:17,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:17,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 6 letters. [2019-12-07 16:39:17,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:17,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2019-12-07 16:39:17,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:39:17,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 13 states and 16 transitions. [2019-12-07 16:39:17,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 16:39:17,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 16:39:17,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2019-12-07 16:39:17,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:39:17,296 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 16:39:17,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2019-12-07 16:39:17,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2019-12-07 16:39:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 16:39:17,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-12-07 16:39:17,297 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 16:39:17,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:17,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:39:17,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:39:17,300 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2019-12-07 16:39:17,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:17,308 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-12-07 16:39:17,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:39:17,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2019-12-07 16:39:17,309 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:39:17,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 14 transitions. [2019-12-07 16:39:17,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 16:39:17,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 16:39:17,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2019-12-07 16:39:17,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:39:17,310 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-07 16:39:17,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2019-12-07 16:39:17,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-12-07 16:39:17,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 16:39:17,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-07 16:39:17,311 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 16:39:17,311 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 16:39:17,311 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 16:39:17,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2019-12-07 16:39:17,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:39:17,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:39:17,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:39:17,312 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2019-12-07 16:39:17,312 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:39:17,312 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 162#L18-2 assume !!(main_~y~0 >= 0); 163#L19 assume main_~x~0 <= 50;main_~y~0 := 1 + main_~y~0; 171#L19-2 main_~x~0 := 1 + main_~x~0; 172#L18-2 assume !!(main_~y~0 >= 0); 170#L19 [2019-12-07 16:39:17,313 INFO L796 eck$LassoCheckResult]: Loop: 170#L19 assume !(main_~x~0 <= 50);main_~y~0 := main_~y~0 - 1; 167#L19-2 main_~x~0 := 1 + main_~x~0; 168#L18-2 assume !!(main_~y~0 >= 0); 170#L19 [2019-12-07 16:39:17,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:17,313 INFO L82 PathProgramCache]: Analyzing trace with hash 29863612, now seen corresponding path program 2 times [2019-12-07 16:39:17,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:17,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181398588] [2019-12-07 16:39:17,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:17,320 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:39:17,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:17,321 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 2 times [2019-12-07 16:39:17,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:17,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038475547] [2019-12-07 16:39:17,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:39:17,328 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:39:17,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:17,328 INFO L82 PathProgramCache]: Analyzing trace with hash 608649772, now seen corresponding path program 1 times [2019-12-07 16:39:17,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:17,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14104262] [2019-12-07 16:39:17,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:39:17,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14104262] [2019-12-07 16:39:17,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445340692] [2019-12-07 16:39:17,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:39:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,364 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:39:17,365 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:39:17,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:39:17,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 16:39:17,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341186490] [2019-12-07 16:39:17,383 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:39:17,383 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:39:17,383 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:39:17,384 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:39:17,384 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:39:17,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:39:17,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:39:17,384 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:39:17,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration3_Loop [2019-12-07 16:39:17,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:39:17,384 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:39:17,386 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 16:39:17,391 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 16:39:17,393 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 16:39:17,395 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 16:39:17,437 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:39:17,437 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:39:17,443 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:39:17,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:39:17,481 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:39:17,482 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:39:17,482 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:39:17,482 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:39:17,482 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:39:17,483 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:39:17,483 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:39:17,483 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:39:17,483 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:39:17,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration3_Loop [2019-12-07 16:39:17,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:39:17,483 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:39:17,484 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 16:39:17,489 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 16:39:17,491 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 16:39:17,493 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 16:39:17,534 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:39:17,535 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,543 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 16:39:17,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:39:17,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:39:17,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:39:17,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:39:17,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:39:17,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:39:17,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:39:17,547 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:39:17,550 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:39:17,550 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1b831f-d4cd-4283-bd47-a1087af4f95c/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 16:39:17,553 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:39:17,553 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:39:17,553 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:39:17,553 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 16:39:17,555 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:39:17,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,566 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:39:17,566 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,569 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:39:17,569 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:17,574 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 16:39:17,574 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 16:39:17,574 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-12-07 16:39:17,578 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 13 transitions. Complement of second has 3 states. [2019-12-07 16:39:17,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-12-07 16:39:17,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:39:17,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2019-12-07 16:39:17,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 16:39:17,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:17,578 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 16:39:17,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,591 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:39:17,591 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,594 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:39:17,594 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:17,599 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 16:39:17,600 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 16:39:17,600 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-12-07 16:39:17,602 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 13 transitions. Complement of second has 3 states. [2019-12-07 16:39:17,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-12-07 16:39:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:39:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2019-12-07 16:39:17,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 16:39:17,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:17,603 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 16:39:17,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,613 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:39:17,613 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:17,616 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:39:17,616 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:17,621 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 16:39:17,621 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 16:39:17,621 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-12-07 16:39:17,631 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 19 transitions. Complement of second has 4 states. [2019-12-07 16:39:17,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:39:17,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:39:17,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-12-07 16:39:17,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 16:39:17,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:17,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2019-12-07 16:39:17,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:17,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2019-12-07 16:39:17,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:39:17,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-12-07 16:39:17,633 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:39:17,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2019-12-07 16:39:17,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 16:39:17,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 16:39:17,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 16:39:17,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:39:17,634 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:39:17,634 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:39:17,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:17,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:39:17,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:39:17,634 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2019-12-07 16:39:17,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:17,634 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-12-07 16:39:17,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:39:17,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-12-07 16:39:17,634 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:39:17,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:39:17,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 16:39:17,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 16:39:17,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 16:39:17,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:39:17,635 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:39:17,635 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:39:17,635 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:39:17,635 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 16:39:17,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:39:17,635 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:39:17,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 16:39:17,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 04:39:17 BoogieIcfgContainer [2019-12-07 16:39:17,639 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 16:39:17,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:39:17,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:39:17,640 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:39:17,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:39:16" (3/4) ... [2019-12-07 16:39:17,642 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:39:17,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:39:17,643 INFO L168 Benchmark]: Toolchain (without parser) took 1566.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 936.6 MB in the beginning and 1.0 GB in the end (delta: -112.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:39:17,644 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 954.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:39:17,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:17,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:17,645 INFO L168 Benchmark]: Boogie Preprocessor took 11.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:17,645 INFO L168 Benchmark]: RCFGBuilder took 128.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:17,646 INFO L168 Benchmark]: BuchiAutomizer took 1229.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:17,646 INFO L168 Benchmark]: Witness Printer took 2.51 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:39:17,648 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 954.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 128.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1229.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.51 ms. Allocated memory is still 1.1 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 101 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 13 SDs, 0 SdLazy, 33 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...