./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.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_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 cf6b3a74fd4060a216a178ad3d11a901c2ac840d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:54:21,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:54:21,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:54:21,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:54:21,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:54:21,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:54:21,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:54:21,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:54:21,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:54:21,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:54:21,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:54:21,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:54:21,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:54:21,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:54:21,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:54:21,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:54:21,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:54:21,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:54:21,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:54:21,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:54:21,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:54:21,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:54:21,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:54:21,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:54:21,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:54:21,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:54:21,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:54:21,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:54:21,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:54:21,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:54:21,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:54:21,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:54:21,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:54:21,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:54:21,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:54:21,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:54:21,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:54:21,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:54:21,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:54:21,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:54:21,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:54:21,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 16:54:21,412 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:54:21,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:54:21,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:54:21,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:54:21,413 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:54:21,413 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 16:54:21,414 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 16:54:21,414 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 16:54:21,414 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 16:54:21,414 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 16:54:21,414 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 16:54:21,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:54:21,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:54:21,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:54:21,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:54:21,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 16:54:21,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 16:54:21,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 16:54:21,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:54:21,415 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 16:54:21,415 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:54:21,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 16:54:21,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:54:21,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:54:21,416 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 16:54:21,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:54:21,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:54:21,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:54:21,416 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 16:54:21,417 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 16:54:21,417 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_3a9201fa-388f-478d-b61f-474ac15b5196/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 -> cf6b3a74fd4060a216a178ad3d11a901c2ac840d [2019-12-07 16:54:21,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:54:21,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:54:21,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:54:21,526 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:54:21,526 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:54:21,527 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2019-12-07 16:54:21,562 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/data/7c6668ab7/6e46d3878d5440c2a3e9dbf6aa477613/FLAGcdd4e6e94 [2019-12-07 16:54:21,949 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:54:21,949 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2019-12-07 16:54:21,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/data/7c6668ab7/6e46d3878d5440c2a3e9dbf6aa477613/FLAGcdd4e6e94 [2019-12-07 16:54:21,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/data/7c6668ab7/6e46d3878d5440c2a3e9dbf6aa477613 [2019-12-07 16:54:21,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:54:21,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:54:21,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:54:21,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:54:21,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:54:21,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:54:21" (1/1) ... [2019-12-07 16:54:21,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce49fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:21, skipping insertion in model container [2019-12-07 16:54:21,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:54:21" (1/1) ... [2019-12-07 16:54:21,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:54:21,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:54:22,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:54:22,082 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:54:22,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:54:22,137 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:54:22,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22 WrapperNode [2019-12-07 16:54:22,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:54:22,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:54:22,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:54:22,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:54:22,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... [2019-12-07 16:54:22,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... [2019-12-07 16:54:22,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:54:22,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:54:22,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:54:22,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:54:22,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... [2019-12-07 16:54:22,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... [2019-12-07 16:54:22,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... [2019-12-07 16:54:22,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... [2019-12-07 16:54:22,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... [2019-12-07 16:54:22,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... [2019-12-07 16:54:22,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... [2019-12-07 16:54:22,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:54:22,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:54:22,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:54:22,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:54:22,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:54:22,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:54:22,303 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:54:22,303 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 16:54:22,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:54:22 BoogieIcfgContainer [2019-12-07 16:54:22,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:54:22,305 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 16:54:22,305 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 16:54:22,308 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 16:54:22,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:54:22,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 04:54:21" (1/3) ... [2019-12-07 16:54:22,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63bd666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:54:22, skipping insertion in model container [2019-12-07 16:54:22,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:54:22,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:54:22" (2/3) ... [2019-12-07 16:54:22,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63bd666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:54:22, skipping insertion in model container [2019-12-07 16:54:22,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:54:22,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:54:22" (3/3) ... [2019-12-07 16:54:22,311 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.09-no-inv_assume.c [2019-12-07 16:54:22,343 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 16:54:22,343 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 16:54:22,343 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 16:54:22,343 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:54:22,343 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:54:22,343 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 16:54:22,343 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:54:22,344 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 16:54:22,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-12-07 16:54:22,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:22,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:54:22,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:54:22,370 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 16:54:22,371 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:54:22,371 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 16:54:22,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-12-07 16:54:22,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:22,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:54:22,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:54:22,372 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 16:54:22,372 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:54:22,377 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 7#L11true assume main_~x~0 > 0 && main_~y~0 > 0; 3#L12-2true [2019-12-07 16:54:22,377 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!!(0 == main_~x~0); 10#L13true assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 8#L13-2true main_~c~0 := 1 + main_~c~0; 3#L12-2true [2019-12-07 16:54:22,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:22,381 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-12-07 16:54:22,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:22,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737400174] [2019-12-07 16:54:22,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:22,455 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:22,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash 42800, now seen corresponding path program 1 times [2019-12-07 16:54:22,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:22,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898969430] [2019-12-07 16:54:22,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:22,466 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:22,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:22,467 INFO L82 PathProgramCache]: Analyzing trace with hash 29684845, now seen corresponding path program 1 times [2019-12-07 16:54:22,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:22,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3745651] [2019-12-07 16:54:22,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:22,479 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:22,516 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:22,517 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:22,517 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:22,517 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:22,517 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:54:22,517 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:22,517 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:22,517 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:22,518 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2019-12-07 16:54:22,518 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:22,518 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:22,533 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 16:54:22,539 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 16:54:22,543 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 16:54:22,546 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 16:54:22,631 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:22,632 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:22,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:22,646 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:22,646 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_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:22,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:22,654 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:22,654 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_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:22,658 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:22,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:22,677 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:22,677 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-3}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [1, 0, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:22,681 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:22,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:22,865 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:54:22,867 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:22,867 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:22,867 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:22,867 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:22,867 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:54:22,868 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:22,868 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:22,868 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:22,868 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2019-12-07 16:54:22,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:22,868 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:22,870 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 16:54:22,873 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 16:54:22,876 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 16:54:22,879 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 16:54:22,949 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:22,953 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,957 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 16:54:22,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:22,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:22,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:22,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:22,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:54:22,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:54:22,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,971 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 16:54:22,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:22,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:22,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:22,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:22,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:54:22,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:54:22,980 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,984 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 16:54:22,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:22,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:54:22,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:22,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:22,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:22,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:54:22,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:54:22,989 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:22,994 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 16:54:22,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:22,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:54:22,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:22,996 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 16:54:22,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:22,998 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:54:22,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:54:23,001 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:54:23,006 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 16:54:23,006 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,010 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:54:23,010 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:54:23,010 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:54:23,010 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-12-07 16:54:23,014 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:54:23,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:23,045 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:54:23,046 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:54:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:23,057 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:54:23,057 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:54:23,079 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 16:54:23,089 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 16:54:23,090 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states. [2019-12-07 16:54:23,118 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 4 states. Result 29 states and 36 transitions. Complement of second has 5 states. [2019-12-07 16:54:23,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:54:23,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 16:54:23,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2019-12-07 16:54:23,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2019-12-07 16:54:23,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:23,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 16:54:23,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:23,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2019-12-07 16:54:23,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:23,123 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2019-12-07 16:54:23,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:23,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 12 states and 15 transitions. [2019-12-07 16:54:23,128 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 16:54:23,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-12-07 16:54:23,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2019-12-07 16:54:23,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:54:23,129 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 16:54:23,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2019-12-07 16:54:23,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2019-12-07 16:54:23,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 16:54:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-12-07 16:54:23,145 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 16:54:23,146 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 16:54:23,146 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 16:54:23,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-12-07 16:54:23,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:23,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:54:23,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:54:23,146 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 16:54:23,146 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:54:23,147 INFO L794 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 82#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 83#L12-2 assume !!!(0 == main_~x~0); 78#L13 [2019-12-07 16:54:23,147 INFO L796 eck$LassoCheckResult]: Loop: 78#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 84#L13-2 main_~c~0 := 1 + main_~c~0; 77#L12-2 assume !!!(0 == main_~x~0); 78#L13 [2019-12-07 16:54:23,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:23,147 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2019-12-07 16:54:23,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:23,147 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079713880] [2019-12-07 16:54:23,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:23,153 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:23,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:23,154 INFO L82 PathProgramCache]: Analyzing trace with hash 47722, now seen corresponding path program 1 times [2019-12-07 16:54:23,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:23,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165864608] [2019-12-07 16:54:23,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:23,159 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:23,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:23,160 INFO L82 PathProgramCache]: Analyzing trace with hash 920232130, now seen corresponding path program 1 times [2019-12-07 16:54:23,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:23,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527005246] [2019-12-07 16:54:23,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:23,167 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:23,180 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:23,180 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:23,180 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:23,181 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:23,181 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:54:23,181 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,181 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:23,181 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:23,181 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Loop [2019-12-07 16:54:23,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:23,181 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:23,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:23,184 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 16:54:23,189 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 16:54:23,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:23,238 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:23,239 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,246 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_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,250 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:23,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,341 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,341 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,345 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,345 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,349 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,349 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_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,353 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:23,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,374 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,374 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-3}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [1, 0, 1] Nus: [0, 1] [2019-12-07 16:54:23,394 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:23,394 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:23,394 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:23,394 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:23,395 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:54:23,395 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,395 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:23,395 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:23,395 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2019-12-07 16:54:23,395 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:23,395 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:23,396 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 16:54:23,398 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 16:54:23,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:23,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:23,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:23,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:23,411 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 16:54:23,485 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:23,485 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,491 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,491 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,499 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,499 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,504 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,507 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,507 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,514 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,515 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,519 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:23,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,537 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,537 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-3}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [1, 0, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,545 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:23,545 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:23,549 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:23,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:23,681 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:54:23,682 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:23,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:23,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:23,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:23,683 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:54:23,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:23,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:23,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2019-12-07 16:54:23,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:23,683 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:23,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:23,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:23,689 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 16:54:23,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:23,693 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 16:54:23,697 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 16:54:23,699 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 16:54:23,776 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:23,776 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/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 16:54:23,779 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 16:54:23,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:23,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:54:23,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:23,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:23,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:23,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:54:23,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:54:23,782 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,785 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 16:54:23,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:23,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:54:23,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:23,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:23,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:23,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:54:23,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:54:23,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,792 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 16:54:23,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:23,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:54:23,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:23,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:23,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:23,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:54:23,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:54:23,795 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,798 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 16:54:23,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:23,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:23,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:23,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:23,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:54:23,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:54:23,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,807 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 16:54:23,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:23,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:23,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:23,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:23,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:54:23,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:54:23,815 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,819 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 16:54:23,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:23,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:23,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:23,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:23,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:54:23,822 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:54:23,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,829 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 16:54:23,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:23,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:23,831 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 16:54:23,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:23,836 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-12-07 16:54:23,837 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 16:54:23,854 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:54:23,868 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2019-12-07 16:54:23,868 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:23,871 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:54:23,875 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-12-07 16:54:23,875 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:54:23,875 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [2*ULTIMATE.start_main_~x~0 - 1 >= 0] [2019-12-07 16:54:23,879 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 16:54:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:23,900 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:54:23,900 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:54:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:23,907 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:54:23,907 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:54:23,917 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 16:54:23,917 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 16:54:23,917 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 16:54:23,944 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 16 states and 21 transitions. Complement of second has 5 states. [2019-12-07 16:54:23,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2019-12-07 16:54:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 16:54:23,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-12-07 16:54:23,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 3 letters. Loop has 3 letters. [2019-12-07 16:54:23,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:23,945 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 16:54:23,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:23,966 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:54:23,966 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:54:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:23,973 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:54:23,974 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:54:23,984 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 16:54:23,984 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 16:54:23,984 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 16:54:24,003 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 21 states and 26 transitions. Complement of second has 6 states. [2019-12-07 16:54:24,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:54:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 16:54:24,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-12-07 16:54:24,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 3 letters. [2019-12-07 16:54:24,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:24,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 16:54:24,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:24,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 6 letters. [2019-12-07 16:54:24,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:24,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2019-12-07 16:54:24,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:24,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 13 states and 16 transitions. [2019-12-07 16:54:24,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 16:54:24,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-12-07 16:54:24,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2019-12-07 16:54:24,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:54:24,006 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 16:54:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2019-12-07 16:54:24,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2019-12-07 16:54:24,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 16:54:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-12-07 16:54:24,007 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 16:54:24,007 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 16:54:24,007 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 16:54:24,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2019-12-07 16:54:24,008 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:24,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:54:24,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:54:24,008 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 16:54:24,008 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:54:24,008 INFO L794 eck$LassoCheckResult]: Stem: 207#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 208#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 204#L12-2 assume !!!(0 == main_~x~0); 205#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 213#L13-2 main_~c~0 := 1 + main_~c~0; 210#L12-2 [2019-12-07 16:54:24,008 INFO L796 eck$LassoCheckResult]: Loop: 210#L12-2 assume !!!(0 == main_~x~0); 212#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 209#L13-2 main_~c~0 := 1 + main_~c~0; 210#L12-2 [2019-12-07 16:54:24,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:24,008 INFO L82 PathProgramCache]: Analyzing trace with hash 29684845, now seen corresponding path program 2 times [2019-12-07 16:54:24,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:24,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290284662] [2019-12-07 16:54:24,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,015 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:24,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:24,015 INFO L82 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 2 times [2019-12-07 16:54:24,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:24,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596535098] [2019-12-07 16:54:24,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,020 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:24,020 INFO L82 PathProgramCache]: Analyzing trace with hash -422032510, now seen corresponding path program 1 times [2019-12-07 16:54:24,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:24,020 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312453389] [2019-12-07 16:54:24,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,031 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:24,041 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:24,042 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:24,042 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:24,042 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:24,042 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:54:24,042 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,042 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:24,042 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:24,042 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Loop [2019-12-07 16:54:24,042 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:24,042 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:24,043 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 16:54:24,045 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 16:54:24,046 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 16:54:24,050 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 16:54:24,086 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:24,086 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,089 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:24,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,106 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-3}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [1, 0, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,113 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,113 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,117 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:24,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,139 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,139 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Honda state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=0}] Lambdas: [10, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,148 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,148 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-12-07 16:54:24,170 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:24,170 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:24,170 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:24,171 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:24,171 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:54:24,171 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,171 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:24,171 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:24,171 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2019-12-07 16:54:24,171 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:24,171 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:24,172 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 16:54:24,173 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 16:54:24,174 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 16:54:24,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:24,176 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 16:54:24,178 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 16:54:24,184 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 16:54:24,238 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:24,238 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,243 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,244 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,251 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,251 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,258 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,258 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,265 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,269 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:24,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,287 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-3}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [1, 0, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,291 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:24,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,349 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:54:24,350 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:24,350 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:24,351 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:24,351 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:24,351 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:54:24,351 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,351 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:24,351 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:24,351 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2019-12-07 16:54:24,351 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:24,351 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:24,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:24,353 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 16:54:24,354 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 16:54:24,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:24,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:24,359 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 16:54:24,366 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 16:54:24,417 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:24,417 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,420 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 16:54:24,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:24,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:54:24,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:24,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:24,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:24,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:54:24,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:54:24,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,427 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 16:54:24,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:24,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:54:24,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:24,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:24,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:24,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:54:24,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:54:24,430 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:54:24,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:24,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:54:24,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:24,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:24,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:24,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:54:24,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:54:24,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,440 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 16:54:24,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:24,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:24,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:24,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:24,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:54:24,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:54:24,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,451 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 16:54:24,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:24,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:24,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:54:24,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:24,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:54:24,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:54:24,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,459 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 16:54:24,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:54:24,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:54:24,461 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 16:54:24,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:54:24,465 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-12-07 16:54:24,465 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 16:54:24,484 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:54:24,501 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-12-07 16:54:24,501 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,504 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:54:24,511 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-12-07 16:54:24,511 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:54:24,511 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~x~0 >= 0] [2019-12-07 16:54:24,514 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 16:54:24,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:24,533 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:54:24,534 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:54:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:24,551 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:54:24,552 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:54:24,573 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 16:54:24,573 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2019-12-07 16:54:24,573 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand 6 states. [2019-12-07 16:54:24,613 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand 6 states. Result 28 states and 35 transitions. Complement of second has 10 states. [2019-12-07 16:54:24,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2019-12-07 16:54:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 16:54:24,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-12-07 16:54:24,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 16:54:24,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:24,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2019-12-07 16:54:24,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:24,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 12 transitions. Stem has 5 letters. Loop has 6 letters. [2019-12-07 16:54:24,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:54:24,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2019-12-07 16:54:24,615 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:24,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 24 transitions. [2019-12-07 16:54:24,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 16:54:24,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-12-07 16:54:24,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2019-12-07 16:54:24,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:54:24,616 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-12-07 16:54:24,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2019-12-07 16:54:24,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 11. [2019-12-07 16:54:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 16:54:24,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-12-07 16:54:24,617 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 16:54:24,617 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 16:54:24,617 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 16:54:24,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-12-07 16:54:24,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:24,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:54:24,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:54:24,618 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2019-12-07 16:54:24,618 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:54:24,618 INFO L794 eck$LassoCheckResult]: Stem: 315#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 316#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 311#L12-2 assume !!!(0 == main_~x~0); 312#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 319#L13-2 main_~c~0 := 1 + main_~c~0; 313#L12-2 assume !!!(0 == main_~x~0); 314#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 321#L13-2 main_~c~0 := 1 + main_~c~0; 318#L12-2 [2019-12-07 16:54:24,618 INFO L796 eck$LassoCheckResult]: Loop: 318#L12-2 assume !!!(0 == main_~x~0); 320#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 317#L13-2 main_~c~0 := 1 + main_~c~0; 318#L12-2 [2019-12-07 16:54:24,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:24,619 INFO L82 PathProgramCache]: Analyzing trace with hash -420185530, now seen corresponding path program 2 times [2019-12-07 16:54:24,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:24,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675462564] [2019-12-07 16:54:24,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:54:24,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675462564] [2019-12-07 16:54:24,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:54:24,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:54:24,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431166291] [2019-12-07 16:54:24,649 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:54:24,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:24,650 INFO L82 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 3 times [2019-12-07 16:54:24,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:24,650 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347103139] [2019-12-07 16:54:24,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,654 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:24,666 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:24,666 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:24,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:24,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:24,667 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:54:24,667 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:24,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:24,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration4_Loop [2019-12-07 16:54:24,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:24,667 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:24,668 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 16:54:24,673 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 16:54:24,675 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 16:54:24,677 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 16:54:24,722 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:24,722 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,725 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:24,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,751 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,751 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,758 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,758 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,766 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,766 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,777 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:24,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,794 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,794 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-3}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [1, 0, 1] Nus: [0, 1] [2019-12-07 16:54:24,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:54:24,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:54:24,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:54:24,798 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-12-07 16:54:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:54:24,809 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-12-07 16:54:24,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:54:24,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-12-07 16:54:24,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:24,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 14 transitions. [2019-12-07 16:54:24,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-12-07 16:54:24,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-12-07 16:54:24,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2019-12-07 16:54:24,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:54:24,810 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-12-07 16:54:24,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2019-12-07 16:54:24,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2019-12-07 16:54:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 16:54:24,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-12-07 16:54:24,812 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-12-07 16:54:24,812 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-12-07 16:54:24,812 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 16:54:24,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2019-12-07 16:54:24,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:54:24,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:54:24,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:54:24,813 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1] [2019-12-07 16:54:24,813 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:54:24,813 INFO L794 eck$LassoCheckResult]: Stem: 348#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 349#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 344#L12-2 assume !!!(0 == main_~x~0); 345#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 352#L13-2 main_~c~0 := 1 + main_~c~0; 346#L12-2 assume !!!(0 == main_~x~0); 347#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 354#L13-2 main_~c~0 := 1 + main_~c~0; 351#L12-2 [2019-12-07 16:54:24,813 INFO L796 eck$LassoCheckResult]: Loop: 351#L12-2 assume !!!(0 == main_~x~0); 353#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 350#L13-2 main_~c~0 := 1 + main_~c~0; 351#L12-2 [2019-12-07 16:54:24,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:24,813 INFO L82 PathProgramCache]: Analyzing trace with hash -422032572, now seen corresponding path program 3 times [2019-12-07 16:54:24,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:24,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728375743] [2019-12-07 16:54:24,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:54:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:54:24,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728375743] [2019-12-07 16:54:24,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:54:24,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:54:24,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955287851] [2019-12-07 16:54:24,825 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:54:24,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:54:24,825 INFO L82 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 4 times [2019-12-07 16:54:24,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:54:24,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762099782] [2019-12-07 16:54:24,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:54:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:54:24,828 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:54:24,840 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:54:24,840 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:54:24,840 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:54:24,840 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:54:24,840 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:54:24,840 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:54:24,840 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:54:24,840 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration5_Loop [2019-12-07 16:54:24,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:54:24,840 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:54:24,841 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 16:54:24,843 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 16:54:24,848 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 16:54:24,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:54:24,884 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:54:24,885 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,887 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,890 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,890 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_10=0} Honda state: {v_rep~unnamed0~0~false_10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,894 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:24,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,945 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,946 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-5, ULTIMATE.start_main_~x~0=-5} Honda state: {ULTIMATE.start_main_~y~0=-5, ULTIMATE.start_main_~x~0=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=0}] Lambdas: [11, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,952 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,952 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_10=1} Honda state: {v_rep~unnamed0~0~true_10=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:54:24,956 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a9201fa-388f-478d-b61f-474ac15b5196/bin/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:54:24,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:54:24,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:54:24,974 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:54:24,974 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-3}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [1, 0, 1] Nus: [0, 1] [2019-12-07 16:54:24,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:54:24,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:54:24,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:54:24,976 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-12-07 16:54:24,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:54:24,980 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-12-07 16:54:24,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:54:24,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 6 transitions. [2019-12-07 16:54:24,980 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:54:24,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2019-12-07 16:54:24,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 16:54:24,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 16:54:24,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 16:54:24,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:54:24,981 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:54:24,981 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:54:24,981 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:54:24,981 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 16:54:24,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:54:24,981 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:54:24,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 16:54:24,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 04:54:24 BoogieIcfgContainer [2019-12-07 16:54:24,985 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 16:54:24,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:54:24,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:54:24,985 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:54:24,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:54:22" (3/4) ... [2019-12-07 16:54:24,988 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:54:24,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:54:24,989 INFO L168 Benchmark]: Toolchain (without parser) took 3025.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:54:24,989 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:54:24,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:54:24,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:54:24,990 INFO L168 Benchmark]: Boogie Preprocessor took 11.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:54:24,991 INFO L168 Benchmark]: RCFGBuilder took 133.60 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:54:24,991 INFO L168 Benchmark]: BuchiAutomizer took 2680.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -20.0 MB). Peak memory consumption was 36.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:54:24,991 INFO L168 Benchmark]: Witness Printer took 2.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:54:24,993 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 133.60 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2680.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -20.0 MB). Peak memory consumption was 36.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * y + x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 3. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 23 SDslu, 12 SDs, 0 SdLazy, 43 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax154 hnf97 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf95 smp100 dnf157 smp100 tf103 neg94 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 49ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 11 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...