./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 500cb8735f650eb0e7c33062ddc23c2166b17f19 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:45:33,928 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:45:33,929 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:45:33,939 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:45:33,939 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:45:33,940 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:45:33,941 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:45:33,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:45:33,943 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:45:33,944 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:45:33,945 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:45:33,945 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:45:33,946 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:45:33,947 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:45:33,947 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:45:33,948 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:45:33,949 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:45:33,950 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:45:33,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:45:33,953 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:45:33,954 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:45:33,955 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:45:33,957 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:45:33,957 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:45:33,958 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:45:33,958 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:45:33,959 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:45:33,960 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:45:33,961 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:45:33,961 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:45:33,962 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:45:33,962 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:45:33,962 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:45:33,963 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:45:33,963 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:45:33,964 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:45:33,964 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 10:45:33,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:45:33,978 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:45:33,979 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:45:33,979 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:45:33,979 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:45:33,979 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 10:45:33,979 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 10:45:33,980 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 10:45:33,980 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 10:45:33,980 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 10:45:33,980 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 10:45:33,980 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:45:33,980 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 10:45:33,980 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:45:33,980 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:45:33,981 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 10:45:33,981 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 10:45:33,981 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 10:45:33,981 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:45:33,981 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 10:45:33,981 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:45:33,981 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 10:45:33,982 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:45:33,982 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:45:33,982 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 10:45:33,982 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:45:33,982 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:45:33,982 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 10:45:33,983 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 10:45:33,983 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2018-11-28 10:45:34,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:45:34,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:45:34,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:45:34,027 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:45:34,028 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:45:34,028 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-28 10:45:34,084 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/data/5db205388/4d7694a0656547c0b488c8fd972e430f/FLAG755c42de3 [2018-11-28 10:45:34,460 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:45:34,460 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-28 10:45:34,465 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/data/5db205388/4d7694a0656547c0b488c8fd972e430f/FLAG755c42de3 [2018-11-28 10:45:34,476 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/data/5db205388/4d7694a0656547c0b488c8fd972e430f [2018-11-28 10:45:34,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:45:34,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:45:34,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:45:34,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:45:34,483 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:45:34,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bce3877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34, skipping insertion in model container [2018-11-28 10:45:34,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:45:34,503 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:45:34,623 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:45:34,626 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:45:34,638 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:45:34,648 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:45:34,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34 WrapperNode [2018-11-28 10:45:34,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:45:34,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:45:34,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:45:34,649 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:45:34,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:45:34,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:45:34,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:45:34,674 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:45:34,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... [2018-11-28 10:45:34,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:45:34,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:45:34,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:45:34,693 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:45:34,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:45:34,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:45:34,880 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:45:34,880 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 10:45:34,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:34 BoogieIcfgContainer [2018-11-28 10:45:34,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:45:34,881 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 10:45:34,881 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 10:45:34,884 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 10:45:34,884 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:45:34,884 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 10:45:34" (1/3) ... [2018-11-28 10:45:34,885 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66b06025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:45:34, skipping insertion in model container [2018-11-28 10:45:34,885 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:45:34,886 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:45:34" (2/3) ... [2018-11-28 10:45:34,886 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66b06025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:45:34, skipping insertion in model container [2018-11-28 10:45:34,886 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:45:34,886 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:34" (3/3) ... [2018-11-28 10:45:34,888 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-28 10:45:34,932 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:45:34,933 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 10:45:34,933 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 10:45:34,933 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 10:45:34,933 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:45:34,933 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:45:34,933 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 10:45:34,933 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:45:34,933 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 10:45:34,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 10:45:34,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:45:34,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:45:34,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:45:34,965 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 10:45:34,965 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:45:34,965 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 10:45:34,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 10:45:34,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:45:34,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:45:34,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:45:34,966 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 10:45:34,967 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:45:34,975 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 9#L21-2true [2018-11-28 10:45:34,975 INFO L796 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~i~0 < main_~n~0); 3#L21true assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 9#L21-2true [2018-11-28 10:45:34,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:34,981 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-28 10:45:34,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:34,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:35,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:45:35,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:35,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:35,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-11-28 10:45:35,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:35,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:35,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:45:35,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:35,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:35,074 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-11-28 10:45:35,075 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:35,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:35,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:45:35,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:35,134 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:45:35,135 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:45:35,135 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:45:35,135 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:45:35,135 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:45:35,135 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,135 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:45:35,136 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:45:35,136 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 10:45:35,136 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:45:35,136 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:45:35,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,288 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:45:35,288 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,292 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:45:35,292 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:45:35,324 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:45:35,324 INFO L448 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/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,327 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:45:35,327 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:45:35,346 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:45:35,346 INFO L448 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/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,353 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:45:35,354 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:45:35,372 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:45:35,372 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,375 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:45:35,375 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,395 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:45:35,395 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:45:35,531 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:45:35,532 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:45:35,533 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:45:35,533 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:45:35,533 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:45:35,533 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:45:35,533 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,533 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:45:35,533 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:45:35,533 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 10:45:35,533 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:45:35,534 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:45:35,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,611 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:45:35,614 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:45:35,616 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:45:35,617 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:45:35,617 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:45:35,618 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:45:35,618 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:45:35,618 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:45:35,620 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:45:35,620 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:45:35,622 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:45:35,623 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:45:35,623 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:45:35,623 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:45:35,624 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:45:35,624 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:45:35,626 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:45:35,626 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:45:35,631 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:45:35,632 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:45:35,632 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:45:35,633 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:45:35,633 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:45:35,633 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:45:35,635 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:45:35,635 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:45:35,643 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:45:35,644 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:45:35,644 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:45:35,644 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:45:35,645 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:45:35,645 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:45:35,645 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:45:35,645 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:45:35,646 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:45:35,651 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:45:35,654 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 10:45:35,654 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 10:45:35,656 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:45:35,656 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:45:35,656 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:45:35,657 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-11-28 10:45:35,658 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:45:35,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:35,704 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:35,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:45:35,732 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 10:45:35,733 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 10:45:35,761 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2018-11-28 10:45:35,762 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 [2018-11-28 10:45:35,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 10:45:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-28 10:45:35,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 10:45:35,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:35,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 10:45:35,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:35,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-28 10:45:35,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:35,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-11-28 10:45:35,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:45:35,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2018-11-28 10:45:35,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 10:45:35,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-28 10:45:35,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-28 10:45:35,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 10:45:35,773 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 10:45:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-28 10:45:35,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-28 10:45:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-28 10:45:35,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-11-28 10:45:35,792 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 10:45:35,792 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 10:45:35,792 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 10:45:35,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2018-11-28 10:45:35,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:45:35,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:45:35,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:45:35,793 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 10:45:35,794 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:45:35,794 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 77#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 78#L21-2 assume !!(main_~i~0 < main_~n~0); 72#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 73#L21-2 [2018-11-28 10:45:35,794 INFO L796 eck$LassoCheckResult]: Loop: 73#L21-2 assume !!(main_~i~0 < main_~n~0); 79#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 73#L21-2 [2018-11-28 10:45:35,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:35,794 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2018-11-28 10:45:35,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:35,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:35,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:45:35,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:35,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:45:35,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:45:35,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 10:45:35,830 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 10:45:35,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:35,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2018-11-28 10:45:35,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:35,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:35,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:45:35,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:35,859 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:45:35,859 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:45:35,859 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:45:35,859 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:45:35,859 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:45:35,859 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,859 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:45:35,859 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:45:35,859 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 10:45:35,860 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:45:35,860 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:45:35,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:35,922 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:45:35,922 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,930 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:45:35,930 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:45:35,962 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:45:35,962 INFO L448 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/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,965 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:45:35,965 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:45:35,983 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:45:35,983 INFO L448 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/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:35,986 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:45:35,986 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:36,006 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:45:36,006 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:45:36,132 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:45:36,133 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:45:36,133 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:45:36,133 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:45:36,133 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:45:36,133 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:45:36,134 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:36,134 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:45:36,134 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:45:36,134 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 10:45:36,134 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:45:36,134 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:45:36,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,187 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:45:36,187 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:45:36,187 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:45:36,188 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:45:36,188 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:45:36,188 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:45:36,188 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:45:36,190 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:45:36,190 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:45:36,192 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:45:36,193 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:45:36,193 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:45:36,193 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:45:36,193 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:45:36,194 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:45:36,195 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:45:36,195 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:45:36,200 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:45:36,200 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:45:36,201 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:45:36,201 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:45:36,201 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:45:36,201 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:45:36,202 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:45:36,202 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:45:36,202 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:45:36,206 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:45:36,210 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 10:45:36,210 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 10:45:36,211 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:45:36,211 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:45:36,211 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:45:36,211 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-11-28 10:45:36,212 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:45:36,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,231 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:36,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:45:36,236 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 10:45:36,236 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 10:45:36,243 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2018-11-28 10:45:36,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 10:45:36,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 10:45:36,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 10:45:36,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 10:45:36,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:36,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 10:45:36,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:36,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-28 10:45:36,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:36,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2018-11-28 10:45:36,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:45:36,246 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2018-11-28 10:45:36,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-28 10:45:36,247 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-28 10:45:36,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2018-11-28 10:45:36,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 10:45:36,247 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-11-28 10:45:36,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2018-11-28 10:45:36,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 10:45:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 10:45:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2018-11-28 10:45:36,248 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-11-28 10:45:36,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:45:36,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:45:36,252 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 3 states. [2018-11-28 10:45:36,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:45:36,259 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2018-11-28 10:45:36,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:45:36,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2018-11-28 10:45:36,261 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:45:36,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2018-11-28 10:45:36,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-28 10:45:36,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-28 10:45:36,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2018-11-28 10:45:36,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 10:45:36,262 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-28 10:45:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2018-11-28 10:45:36,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-11-28 10:45:36,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 10:45:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2018-11-28 10:45:36,264 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-28 10:45:36,264 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-28 10:45:36,264 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 10:45:36,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2018-11-28 10:45:36,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:45:36,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:45:36,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:45:36,265 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2018-11-28 10:45:36,265 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:45:36,265 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 160#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 161#L21-2 assume !!(main_~i~0 < main_~n~0); 157#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 158#L21-2 assume !!(main_~i~0 < main_~n~0); 155#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 156#L21-2 assume !!(main_~i~0 < main_~n~0); 164#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 162#L21-2 [2018-11-28 10:45:36,266 INFO L796 eck$LassoCheckResult]: Loop: 162#L21-2 assume !!(main_~i~0 < main_~n~0); 163#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 162#L21-2 [2018-11-28 10:45:36,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:36,266 INFO L82 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2018-11-28 10:45:36,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:36,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:36,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,268 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 10:45:36,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 10:45:36,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 10:45:36,284 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 10:45:36,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:45:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 10:45:36,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 10:45:36,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-11-28 10:45:36,333 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 10:45:36,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:36,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2018-11-28 10:45:36,334 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:36,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:36,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:45:36,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:36,361 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:45:36,362 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:45:36,362 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:45:36,362 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:45:36,362 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:45:36,362 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:36,363 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:45:36,363 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:45:36,363 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 10:45:36,363 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:45:36,364 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:45:36,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,428 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:45:36,428 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:36,431 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:45:36,432 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:36,466 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:45:36,466 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:45:36,631 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:45:36,633 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:45:36,633 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:45:36,634 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:45:36,634 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:45:36,634 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:45:36,634 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:36,634 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:45:36,634 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:45:36,634 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 10:45:36,635 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:45:36,635 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:45:36,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,701 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:45:36,702 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:45:36,702 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:45:36,703 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:45:36,703 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:45:36,703 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:45:36,703 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:45:36,703 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:45:36,704 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:45:36,704 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:45:36,708 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:45:36,715 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 10:45:36,715 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 10:45:36,716 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:45:36,716 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:45:36,716 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:45:36,716 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-11-28 10:45:36,718 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:45:36,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,745 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:45:36,749 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 10:45:36,750 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-28 10:45:36,756 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2018-11-28 10:45:36,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 10:45:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 10:45:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 10:45:36,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 10:45:36,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:36,757 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 10:45:36,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,784 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:36,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:45:36,785 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 10:45:36,785 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-28 10:45:36,791 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2018-11-28 10:45:36,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 10:45:36,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 10:45:36,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 10:45:36,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 10:45:36,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:36,792 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 10:45:36,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,830 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:36,834 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:36,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:45:36,835 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 10:45:36,835 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-28 10:45:36,842 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 4 states. [2018-11-28 10:45:36,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 10:45:36,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 10:45:36,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-28 10:45:36,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 10:45:36,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:36,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 10:45:36,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:36,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-28 10:45:36,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:36,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2018-11-28 10:45:36,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 10:45:36,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2018-11-28 10:45:36,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-28 10:45:36,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-28 10:45:36,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2018-11-28 10:45:36,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 10:45:36,845 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2018-11-28 10:45:36,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2018-11-28 10:45:36,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2018-11-28 10:45:36,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 10:45:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-28 10:45:36,846 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 10:45:36,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 10:45:36,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 10:45:36,846 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand 5 states. [2018-11-28 10:45:36,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:45:36,855 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-11-28 10:45:36,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 10:45:36,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-11-28 10:45:36,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-28 10:45:36,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2018-11-28 10:45:36,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 10:45:36,856 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 10:45:36,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-11-28 10:45:36,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 10:45:36,857 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-28 10:45:36,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-11-28 10:45:36,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2018-11-28 10:45:36,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 10:45:36,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-11-28 10:45:36,858 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-28 10:45:36,858 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-28 10:45:36,858 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 10:45:36,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-11-28 10:45:36,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 10:45:36,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:45:36,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:45:36,859 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 10:45:36,859 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2018-11-28 10:45:36,859 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 373#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 369#L21-2 [2018-11-28 10:45:36,860 INFO L796 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~i~0 < main_~n~0); 370#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 371#L21-2 assume !!(main_~i~0 < main_~n~0); 368#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 369#L21-2 [2018-11-28 10:45:36,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:36,860 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2018-11-28 10:45:36,860 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:36,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:36,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,861 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 10:45:36,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:36,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:36,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2018-11-28 10:45:36,866 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:36,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:36,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,868 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 10:45:36,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:36,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:36,874 INFO L82 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2018-11-28 10:45:36,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:45:36,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:45:36,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:45:36,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:45:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:45:36,914 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:45:36,914 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:45:36,914 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:45:36,914 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:45:36,914 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:45:36,915 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:36,915 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:45:36,915 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:45:36,915 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 10:45:36,915 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:45:36,915 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:45:36,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:36,973 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:45:36,973 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:36,975 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:45:36,975 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9c85b8-85b0-4159-9c3f-f824a464fde5/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:37,006 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:45:37,006 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:45:37,117 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:45:37,118 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:45:37,119 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:45:37,119 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:45:37,119 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:45:37,119 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:45:37,119 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:45:37,119 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:45:37,119 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:45:37,119 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 10:45:37,119 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:45:37,119 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:45:37,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:37,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:37,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:37,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:45:37,168 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:45:37,169 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:45:37,169 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:45:37,170 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:45:37,170 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:45:37,170 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:45:37,170 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:45:37,170 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:45:37,170 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:45:37,171 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:45:37,176 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:45:37,179 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 10:45:37,179 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 10:45:37,179 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:45:37,179 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:45:37,180 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:45:37,180 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-28 10:45:37,180 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:45:37,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:45:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:37,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:45:37,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:45:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 10:45:37,213 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 [2018-11-28 10:45:37,213 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-11-28 10:45:37,220 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2018-11-28 10:45:37,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 10:45:37,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 10:45:37,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 10:45:37,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-28 10:45:37,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:37,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-28 10:45:37,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:37,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2018-11-28 10:45:37,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:45:37,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2018-11-28 10:45:37,222 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:45:37,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-11-28 10:45:37,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 10:45:37,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 10:45:37,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 10:45:37,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:45:37,223 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:45:37,223 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:45:37,223 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:45:37,223 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 10:45:37,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 10:45:37,223 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:45:37,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 10:45:37,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 10:45:37 BoogieIcfgContainer [2018-11-28 10:45:37,228 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 10:45:37,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:45:37,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:45:37,229 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:45:37,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:45:34" (3/4) ... [2018-11-28 10:45:37,232 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 10:45:37,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:45:37,232 INFO L168 Benchmark]: Toolchain (without parser) took 2753.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 953.3 MB in the beginning and 873.3 MB in the end (delta: 80.0 MB). Peak memory consumption was 212.6 MB. Max. memory is 11.5 GB. [2018-11-28 10:45:37,233 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:45:37,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.12 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:45:37,234 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.32 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:45:37,234 INFO L168 Benchmark]: Boogie Preprocessor took 17.98 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:45:37,235 INFO L168 Benchmark]: RCFGBuilder took 188.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 10:45:37,235 INFO L168 Benchmark]: BuchiAutomizer took 2347.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.3 MB in the end (delta: 248.3 MB). Peak memory consumption was 248.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:45:37,236 INFO L168 Benchmark]: Witness Printer took 3.26 ms. Allocated memory is still 1.2 GB. Free memory is still 873.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:45:37,238 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.12 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.32 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.98 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 188.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2347.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.3 MB in the end (delta: 248.3 MB). Peak memory consumption was 248.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.26 ms. Allocated memory is still 1.2 GB. Free memory is still 873.3 MB. 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * j + m and consists of 4 locations. One deterministic module has affine ranking function -1 * j + m and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 45 SDtfs, 36 SDslu, 11 SDs, 0 SdLazy, 33 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...