./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/MultCommutative_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/MultCommutative_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 32bit --witnessprinter.graph.data.programhash a755472942b72da612d26a2f3af20ed4332f07b5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 14:44:12,954 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 14:44:12,955 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 14:44:12,963 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 14:44:12,963 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 14:44:12,964 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 14:44:12,964 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 14:44:12,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 14:44:12,966 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 14:44:12,967 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 14:44:12,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 14:44:12,968 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 14:44:12,968 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 14:44:12,969 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 14:44:12,969 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 14:44:12,970 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 14:44:12,970 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 14:44:12,971 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 14:44:12,972 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 14:44:12,973 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 14:44:12,974 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 14:44:12,974 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 14:44:12,976 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 14:44:12,976 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 14:44:12,976 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 14:44:12,976 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 14:44:12,977 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 14:44:12,977 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 14:44:12,978 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 14:44:12,978 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 14:44:12,978 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 14:44:12,979 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 14:44:12,979 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 14:44:12,979 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 14:44:12,980 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 14:44:12,980 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 14:44:12,980 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 14:44:12,988 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 14:44:12,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 14:44:12,990 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 14:44:12,990 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 14:44:12,990 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 14:44:12,990 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 14:44:12,990 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 14:44:12,991 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 14:44:12,991 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 14:44:12,991 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 14:44:12,991 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 14:44:12,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 14:44:12,991 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 14:44:12,991 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 14:44:12,992 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 14:44:12,992 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 14:44:12,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 14:44:12,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 14:44:12,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 14:44:12,992 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 14:44:12,993 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 14:44:12,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 14:44:12,993 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 14:44:12,993 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 14:44:12,993 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 14:44:12,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 14:44:12,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 14:44:12,994 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 14:44:12,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 14:44:12,994 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 14:44:12,994 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 14:44:12,995 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 14:44:12,995 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_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a755472942b72da612d26a2f3af20ed4332f07b5 [2018-12-01 14:44:13,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 14:44:13,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 14:44:13,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 14:44:13,025 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 14:44:13,025 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 14:44:13,025 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/../../sv-benchmarks/c/recursive/MultCommutative_true-unreach-call_true-no-overflow_true-termination.c [2018-12-01 14:44:13,070 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/data/c8265b68b/9240394bc995437dbc29ea775fa62b15/FLAGe435984e8 [2018-12-01 14:44:13,392 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 14:44:13,392 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/sv-benchmarks/c/recursive/MultCommutative_true-unreach-call_true-no-overflow_true-termination.c [2018-12-01 14:44:13,395 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/data/c8265b68b/9240394bc995437dbc29ea775fa62b15/FLAGe435984e8 [2018-12-01 14:44:13,802 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/data/c8265b68b/9240394bc995437dbc29ea775fa62b15 [2018-12-01 14:44:13,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 14:44:13,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 14:44:13,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 14:44:13,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 14:44:13,809 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 14:44:13,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770bfda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13, skipping insertion in model container [2018-12-01 14:44:13,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 14:44:13,831 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 14:44:13,930 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 14:44:13,932 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 14:44:13,941 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 14:44:13,949 INFO L195 MainTranslator]: Completed translation [2018-12-01 14:44:13,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13 WrapperNode [2018-12-01 14:44:13,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 14:44:13,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 14:44:13,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 14:44:13,950 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 14:44:13,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 14:44:13,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 14:44:13,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 14:44:13,967 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 14:44:13,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:13,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... [2018-12-01 14:44:14,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 14:44:14,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 14:44:14,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 14:44:14,004 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 14:44:14,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2018-12-01 14:44:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2018-12-01 14:44:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 14:44:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 14:44:14,117 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 14:44:14,117 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-01 14:44:14,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:44:14 BoogieIcfgContainer [2018-12-01 14:44:14,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 14:44:14,118 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 14:44:14,118 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 14:44:14,120 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 14:44:14,120 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 14:44:14,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 02:44:13" (1/3) ... [2018-12-01 14:44:14,121 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26dc60ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 02:44:14, skipping insertion in model container [2018-12-01 14:44:14,121 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 14:44:14,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:44:13" (2/3) ... [2018-12-01 14:44:14,121 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26dc60ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 02:44:14, skipping insertion in model container [2018-12-01 14:44:14,121 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 14:44:14,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:44:14" (3/3) ... [2018-12-01 14:44:14,122 INFO L375 chiAutomizerObserver]: Analyzing ICFG MultCommutative_true-unreach-call_true-no-overflow_true-termination.c [2018-12-01 14:44:14,154 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 14:44:14,154 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 14:44:14,154 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 14:44:14,154 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 14:44:14,154 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 14:44:14,154 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 14:44:14,154 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 14:44:14,154 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 14:44:14,155 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 14:44:14,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-12-01 14:44:14,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-01 14:44:14,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:44:14,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:44:14,187 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-01 14:44:14,187 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 14:44:14,188 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 14:44:14,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-12-01 14:44:14,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-01 14:44:14,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:44:14,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:44:14,189 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-01 14:44:14,189 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 14:44:14,194 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L27true assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 10#L31true assume !(main_~n~0 < 0 || main_~n~0 > 46340); 16#L34true call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 4#multENTRYtrue [2018-12-01 14:44:14,194 INFO L796 eck$LassoCheckResult]: Loop: 4#multENTRYtrue ~n := #in~n;~m := #in~m; 6#L16true assume ~m < 0; 3#L17true call #t~ret0 := mult(~n, -~m);< 4#multENTRYtrue [2018-12-01 14:44:14,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:14,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1390425, now seen corresponding path program 1 times [2018-12-01 14:44:14,199 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:14,199 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:14,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:14,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:14,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:14,260 INFO L82 PathProgramCache]: Analyzing trace with hash 29924, now seen corresponding path program 1 times [2018-12-01 14:44:14,260 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:14,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:14,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:14,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:14,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:14,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1527521652, now seen corresponding path program 1 times [2018-12-01 14:44:14,267 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:14,267 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:14,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:14,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:44:14,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:44:14,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 14:44:14,367 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:14,368 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:14,368 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:14,368 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:14,368 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 14:44:14,368 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:14,368 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:14,368 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:14,369 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration1_Loop [2018-12-01 14:44:14,369 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:14,369 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:14,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,437 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:14,438 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,441 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:14,441 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:14,446 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:14,446 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,461 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:14,461 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:14,463 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:14,463 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,477 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:14,478 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:14,479 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:14,479 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,494 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:14,494 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:14,496 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:14,496 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,511 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:14,511 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:14,512 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:14,512 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,527 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:14,527 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:14,530 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:14,530 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,554 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:14,554 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,571 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 14:44:14,571 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:14,591 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 14:44:14,592 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:14,592 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:14,592 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:14,592 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:14,592 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 14:44:14,592 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:14,592 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:14,592 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:14,592 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration1_Loop [2018-12-01 14:44:14,592 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:14,592 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:14,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,629 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:14,633 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 14:44:14,634 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 [2018-12-01 14:44:14,635 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:14,635 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:14,635 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:14,635 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:14,635 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:14,636 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:14,636 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:14,638 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:14,638 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 [2018-12-01 14:44:14,638 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:14,638 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:14,639 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:14,639 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:14,639 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:14,639 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:14,639 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:14,640 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:14,640 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 [2018-12-01 14:44:14,641 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:14,641 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:14,641 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:14,641 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:14,641 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:14,641 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:14,641 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:14,642 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:14,642 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 [2018-12-01 14:44:14,643 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:14,643 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:14,643 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:14,643 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:14,643 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:14,643 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:14,643 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:14,644 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:14,644 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 [2018-12-01 14:44:14,645 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:14,645 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:14,645 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:14,645 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:14,645 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:14,645 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:14,645 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:14,646 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:14,646 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 [2018-12-01 14:44:14,646 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:14,647 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:14,647 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:14,647 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:14,647 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:14,647 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:14,647 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:14,648 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:14,648 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 [2018-12-01 14:44:14,649 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:14,649 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:14,649 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:14,649 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:14,649 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:14,649 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:14,649 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:14,653 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 14:44:14,655 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2018-12-01 14:44:14,655 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 14:44:14,656 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 14:44:14,656 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 14:44:14,656 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 14:44:14,656 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2018-12-01 14:44:14,657 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 14:44:14,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:14,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:14,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:44:14,724 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-01 14:44:14,725 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 4 states. [2018-12-01 14:44:14,785 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 4 states. Result 50 states and 65 transitions. Complement of second has 12 states. [2018-12-01 14:44:14,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 14:44:14,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 14:44:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-12-01 14:44:14,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2018-12-01 14:44:14,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:14,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2018-12-01 14:44:14,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:14,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2018-12-01 14:44:14,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:14,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 65 transitions. [2018-12-01 14:44:14,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-01 14:44:14,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 44 transitions. [2018-12-01 14:44:14,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-12-01 14:44:14,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2018-12-01 14:44:14,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 44 transitions. [2018-12-01 14:44:14,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 14:44:14,799 INFO L705 BuchiCegarLoop]: Abstraction has 31 states and 44 transitions. [2018-12-01 14:44:14,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 44 transitions. [2018-12-01 14:44:14,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2018-12-01 14:44:14,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-01 14:44:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2018-12-01 14:44:14,820 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-12-01 14:44:14,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 14:44:14,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:44:14,822 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 5 states. [2018-12-01 14:44:14,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:44:14,862 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2018-12-01 14:44:14,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 14:44:14,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2018-12-01 14:44:14,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-01 14:44:14,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 26 states and 33 transitions. [2018-12-01 14:44:14,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-12-01 14:44:14,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2018-12-01 14:44:14,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2018-12-01 14:44:14,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:44:14,866 INFO L705 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2018-12-01 14:44:14,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2018-12-01 14:44:14,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2018-12-01 14:44:14,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-01 14:44:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2018-12-01 14:44:14,869 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2018-12-01 14:44:14,869 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2018-12-01 14:44:14,869 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 14:44:14,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2018-12-01 14:44:14,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-01 14:44:14,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:44:14,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:44:14,870 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:44:14,870 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 14:44:14,870 INFO L794 eck$LassoCheckResult]: Stem: 199#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 197#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 198#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 192#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 191#multENTRY ~n := #in~n;~m := #in~m; 193#L16 assume !(~m < 0); 194#L19 assume !(0 == ~m); 187#L22 call #t~ret1 := mult(~n, ~m - 1);< 190#multENTRY [2018-12-01 14:44:14,870 INFO L796 eck$LassoCheckResult]: Loop: 190#multENTRY ~n := #in~n;~m := #in~m; 205#L16 assume ~m < 0; 186#L17 call #t~ret0 := mult(~n, -~m);< 190#multENTRY [2018-12-01 14:44:14,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:14,871 INFO L82 PathProgramCache]: Analyzing trace with hash -108528961, now seen corresponding path program 1 times [2018-12-01 14:44:14,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:14,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:14,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:14,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:14,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:14,880 INFO L82 PathProgramCache]: Analyzing trace with hash 29924, now seen corresponding path program 2 times [2018-12-01 14:44:14,880 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:14,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:14,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:14,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:14,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:14,885 INFO L82 PathProgramCache]: Analyzing trace with hash 924096870, now seen corresponding path program 1 times [2018-12-01 14:44:14,885 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:14,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:14,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,885 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:44:14,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:44:14,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:44:14,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 14:44:14,931 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:14,931 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:14,931 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:14,931 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:14,931 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 14:44:14,931 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:14,931 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:14,931 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:14,931 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration2_Loop [2018-12-01 14:44:14,932 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:14,932 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:14,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:14,963 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:14,963 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:14,966 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:14,966 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:14,969 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:14,969 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:14,984 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:14,984 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:14,986 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:14,986 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:15,001 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,001 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,003 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,003 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:15,018 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,018 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,020 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,020 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:15,035 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,035 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,037 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,038 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/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 [2018-12-01 14:44:15,052 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,052 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,054 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,055 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,069 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,069 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 14:44:15,085 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,105 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 14:44:15,106 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:15,106 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:15,106 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:15,106 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:15,106 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 14:44:15,106 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,107 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:15,107 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:15,107 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration2_Loop [2018-12-01 14:44:15,107 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:15,107 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:15,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,141 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:15,141 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 14:44:15,142 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 [2018-12-01 14:44:15,142 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,142 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,142 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,142 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,142 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,143 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,143 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,144 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,144 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 [2018-12-01 14:44:15,144 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,144 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,144 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,144 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,144 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,145 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,145 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,145 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,146 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 [2018-12-01 14:44:15,146 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,146 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,146 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,146 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,146 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,147 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,147 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,148 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,148 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 [2018-12-01 14:44:15,149 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,149 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,149 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,149 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,149 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,150 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,150 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,150 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,151 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 [2018-12-01 14:44:15,151 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,151 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,151 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,151 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,151 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,152 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,152 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,152 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,153 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 [2018-12-01 14:44:15,153 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,153 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,153 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,153 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,153 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,154 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,154 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,156 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 14:44:15,158 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2018-12-01 14:44:15,158 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 14:44:15,158 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 14:44:15,158 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 14:44:15,158 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 14:44:15,158 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2018-12-01 14:44:15,158 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 14:44:15,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:15,184 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:15,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:15,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:44:15,203 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-01 14:44:15,204 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 6 Second operand 4 states. [2018-12-01 14:44:15,253 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 72 states and 91 transitions. Complement of second has 15 states. [2018-12-01 14:44:15,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-12-01 14:44:15,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 14:44:15,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-12-01 14:44:15,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 3 letters. [2018-12-01 14:44:15,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:15,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 3 letters. [2018-12-01 14:44:15,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:15,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 6 letters. [2018-12-01 14:44:15,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:15,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 91 transitions. [2018-12-01 14:44:15,256 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-12-01 14:44:15,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 50 states and 65 transitions. [2018-12-01 14:44:15,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2018-12-01 14:44:15,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2018-12-01 14:44:15,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 65 transitions. [2018-12-01 14:44:15,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 14:44:15,258 INFO L705 BuchiCegarLoop]: Abstraction has 50 states and 65 transitions. [2018-12-01 14:44:15,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 65 transitions. [2018-12-01 14:44:15,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2018-12-01 14:44:15,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-01 14:44:15,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-12-01 14:44:15,261 INFO L728 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-12-01 14:44:15,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 14:44:15,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:44:15,262 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 5 states. [2018-12-01 14:44:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:44:15,296 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-12-01 14:44:15,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 14:44:15,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2018-12-01 14:44:15,298 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-12-01 14:44:15,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 47 transitions. [2018-12-01 14:44:15,298 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2018-12-01 14:44:15,298 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2018-12-01 14:44:15,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 47 transitions. [2018-12-01 14:44:15,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:44:15,299 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-12-01 14:44:15,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 47 transitions. [2018-12-01 14:44:15,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-01 14:44:15,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-01 14:44:15,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2018-12-01 14:44:15,302 INFO L728 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-12-01 14:44:15,302 INFO L608 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-12-01 14:44:15,302 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 14:44:15,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 47 transitions. [2018-12-01 14:44:15,302 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-12-01 14:44:15,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:44:15,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:44:15,303 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:44:15,303 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 14:44:15,303 INFO L794 eck$LassoCheckResult]: Stem: 461#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 458#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 459#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 460#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 467#multENTRY ~n := #in~n;~m := #in~m; 479#L16 assume !(~m < 0); 476#L19 assume 0 == ~m;#res := 0; 475#multFINAL assume true; 469#multEXIT >#45#return; 466#L34-1 main_~res1~0 := main_#t~ret4;havoc main_#t~ret4; 451#L35 call main_#t~ret5 := mult(main_~n~0, main_~m~0);< 452#multENTRY [2018-12-01 14:44:15,303 INFO L796 eck$LassoCheckResult]: Loop: 452#multENTRY ~n := #in~n;~m := #in~m; 474#L16 assume ~m < 0; 450#L17 call #t~ret0 := mult(~n, -~m);< 452#multENTRY [2018-12-01 14:44:15,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,304 INFO L82 PathProgramCache]: Analyzing trace with hash 922353405, now seen corresponding path program 1 times [2018-12-01 14:44:15,304 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:15,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:15,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:15,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,312 INFO L82 PathProgramCache]: Analyzing trace with hash 29924, now seen corresponding path program 3 times [2018-12-01 14:44:15,312 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:15,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:15,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:15,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1370471320, now seen corresponding path program 1 times [2018-12-01 14:44:15,316 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:15,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:15,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,316 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:44:15,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:44:15,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:44:15,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 14:44:15,353 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:15,354 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:15,354 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:15,354 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:15,354 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 14:44:15,354 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,354 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:15,354 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:15,354 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration3_Loop [2018-12-01 14:44:15,354 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:15,354 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:15,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,388 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:15,388 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,390 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,390 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,392 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,392 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,407 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,407 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,409 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,409 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,424 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,424 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,426 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,426 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,441 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,441 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,443 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,443 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,458 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,458 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,474 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 14:44:15,474 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,493 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 14:44:15,494 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:15,494 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:15,494 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:15,494 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:15,494 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 14:44:15,494 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,494 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:15,494 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:15,494 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration3_Loop [2018-12-01 14:44:15,494 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:15,494 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:15,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,527 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:15,527 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 14:44:15,527 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 [2018-12-01 14:44:15,527 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,528 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,528 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,528 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,528 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,528 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,528 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,529 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,529 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 [2018-12-01 14:44:15,529 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,529 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,529 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,529 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,529 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,530 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,530 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,530 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,530 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 [2018-12-01 14:44:15,530 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,531 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,531 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,531 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,531 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,531 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,531 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,531 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,532 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 [2018-12-01 14:44:15,532 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,532 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,532 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,532 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,532 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,532 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,532 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,533 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,533 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 [2018-12-01 14:44:15,533 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,533 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,533 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,533 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,533 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,534 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,534 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,535 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 14:44:15,536 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2018-12-01 14:44:15,536 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 14:44:15,537 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 14:44:15,537 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 14:44:15,537 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 14:44:15,537 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2018-12-01 14:44:15,537 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 14:44:15,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:15,553 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:15,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:44:15,579 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-12-01 14:44:15,579 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 47 transitions. cyclomatic complexity: 9 Second operand 5 states. [2018-12-01 14:44:15,622 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 47 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 81 states and 90 transitions. Complement of second has 14 states. [2018-12-01 14:44:15,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 14:44:15,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-01 14:44:15,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2018-12-01 14:44:15,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 11 letters. Loop has 3 letters. [2018-12-01 14:44:15,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:15,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 14 letters. Loop has 3 letters. [2018-12-01 14:44:15,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:15,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 11 letters. Loop has 6 letters. [2018-12-01 14:44:15,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:15,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 90 transitions. [2018-12-01 14:44:15,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-12-01 14:44:15,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 62 states and 70 transitions. [2018-12-01 14:44:15,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2018-12-01 14:44:15,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2018-12-01 14:44:15,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 70 transitions. [2018-12-01 14:44:15,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 14:44:15,627 INFO L705 BuchiCegarLoop]: Abstraction has 62 states and 70 transitions. [2018-12-01 14:44:15,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 70 transitions. [2018-12-01 14:44:15,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 35. [2018-12-01 14:44:15,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-01 14:44:15,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2018-12-01 14:44:15,630 INFO L728 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2018-12-01 14:44:15,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 14:44:15,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 14:44:15,630 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 5 states. [2018-12-01 14:44:15,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:44:15,649 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-12-01 14:44:15,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 14:44:15,649 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2018-12-01 14:44:15,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-12-01 14:44:15,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 35 states and 39 transitions. [2018-12-01 14:44:15,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-12-01 14:44:15,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-12-01 14:44:15,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 39 transitions. [2018-12-01 14:44:15,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:44:15,652 INFO L705 BuchiCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-12-01 14:44:15,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 39 transitions. [2018-12-01 14:44:15,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2018-12-01 14:44:15,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-01 14:44:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2018-12-01 14:44:15,654 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2018-12-01 14:44:15,654 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2018-12-01 14:44:15,654 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 14:44:15,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2018-12-01 14:44:15,655 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-12-01 14:44:15,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:44:15,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:44:15,655 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:44:15,655 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-01 14:44:15,656 INFO L794 eck$LassoCheckResult]: Stem: 736#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 733#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 734#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 735#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 742#multENTRY ~n := #in~n;~m := #in~m; 749#L16 assume !(~m < 0); 747#L19 assume 0 == ~m;#res := 0; 746#multFINAL assume true; 745#multEXIT >#45#return; 741#L34-1 main_~res1~0 := main_#t~ret4;havoc main_#t~ret4; 729#L35 call main_#t~ret5 := mult(main_~n~0, main_~m~0);< 728#multENTRY [2018-12-01 14:44:15,656 INFO L796 eck$LassoCheckResult]: Loop: 728#multENTRY ~n := #in~n;~m := #in~m; 730#L16 assume !(~m < 0); 732#L19 assume !(0 == ~m); 731#L22 call #t~ret1 := mult(~n, ~m - 1);< 728#multENTRY [2018-12-01 14:44:15,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,656 INFO L82 PathProgramCache]: Analyzing trace with hash 922353405, now seen corresponding path program 2 times [2018-12-01 14:44:15,656 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:15,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:15,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:15,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,666 INFO L82 PathProgramCache]: Analyzing trace with hash 929639, now seen corresponding path program 1 times [2018-12-01 14:44:15,666 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:15,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:15,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,666 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:44:15,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,670 INFO L82 PathProgramCache]: Analyzing trace with hash 465064035, now seen corresponding path program 1 times [2018-12-01 14:44:15,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:15,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:15,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:15,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,708 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:15,709 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:15,709 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:15,709 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:15,709 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 14:44:15,709 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,709 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:15,709 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:15,709 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration4_Loop [2018-12-01 14:44:15,709 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:15,709 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:15,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,746 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:15,746 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,747 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,747 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,750 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,750 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,765 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,765 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,767 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,767 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,783 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,783 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,784 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:15,784 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,799 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:15,799 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,816 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 14:44:15,816 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:15,831 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 14:44:15,833 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:15,833 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:15,833 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:15,833 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:15,833 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 14:44:15,833 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:15,833 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:15,833 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:15,834 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration4_Loop [2018-12-01 14:44:15,834 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:15,834 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:15,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:15,885 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:15,886 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 14:44:15,886 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 [2018-12-01 14:44:15,886 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,886 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,886 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,886 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,886 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,887 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,887 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,887 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,887 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 [2018-12-01 14:44:15,888 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,888 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,888 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,888 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,888 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,888 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,888 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,889 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:15,889 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 [2018-12-01 14:44:15,889 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:15,889 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:15,889 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:15,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:15,889 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:15,889 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:15,890 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:15,891 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 14:44:15,892 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 14:44:15,892 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 14:44:15,892 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 14:44:15,892 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 14:44:15,892 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 14:44:15,892 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2018-12-01 14:44:15,893 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 14:44:15,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:15,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:15,928 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:44:15,938 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-12-01 14:44:15,938 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 35 transitions. cyclomatic complexity: 6 Second operand 5 states. [2018-12-01 14:44:15,975 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 35 transitions. cyclomatic complexity: 6. Second operand 5 states. Result 41 states and 45 transitions. Complement of second has 13 states. [2018-12-01 14:44:15,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 14:44:15,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-01 14:44:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-12-01 14:44:15,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 4 letters. [2018-12-01 14:44:15,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:15,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 4 letters. [2018-12-01 14:44:15,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:15,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2018-12-01 14:44:15,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:15,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 45 transitions. [2018-12-01 14:44:15,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 14:44:15,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 15 states and 15 transitions. [2018-12-01 14:44:15,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-12-01 14:44:15,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-12-01 14:44:15,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 15 transitions. [2018-12-01 14:44:15,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:44:15,978 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-12-01 14:44:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 15 transitions. [2018-12-01 14:44:15,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2018-12-01 14:44:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-01 14:44:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-01 14:44:15,979 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-12-01 14:44:15,979 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-12-01 14:44:15,979 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-01 14:44:15,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 8 transitions. [2018-12-01 14:44:15,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 14:44:15,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 14:44:15,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 14:44:15,980 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-01 14:44:15,980 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-01 14:44:15,980 INFO L794 eck$LassoCheckResult]: Stem: 887#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 888#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 881#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 882#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 883#multENTRY [2018-12-01 14:44:15,980 INFO L796 eck$LassoCheckResult]: Loop: 883#multENTRY ~n := #in~n;~m := #in~m; 885#L16 assume !(~m < 0); 886#L19 assume !(0 == ~m); 884#L22 call #t~ret1 := mult(~n, ~m - 1);< 883#multENTRY [2018-12-01 14:44:15,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1390425, now seen corresponding path program 2 times [2018-12-01 14:44:15,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:15,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:15,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:44:15,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,985 INFO L82 PathProgramCache]: Analyzing trace with hash 929639, now seen corresponding path program 2 times [2018-12-01 14:44:15,985 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:15,985 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:15,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,986 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:44:15,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:15,989 INFO L82 PathProgramCache]: Analyzing trace with hash -108528961, now seen corresponding path program 2 times [2018-12-01 14:44:15,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:44:15,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:44:15,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,990 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 14:44:15,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:44:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 14:44:16,019 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:16,019 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:16,019 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:16,019 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:16,019 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 14:44:16,019 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:16,019 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:16,019 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:16,019 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration5_Loop [2018-12-01 14:44:16,019 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:16,019 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:16,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,060 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:16,060 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:16,062 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:16,062 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:16,064 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:16,064 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:16,080 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:16,080 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:16,082 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:16,082 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:16,097 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:16,097 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:16,099 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:16,099 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:16,114 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:16,114 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:16,116 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:16,116 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:16,130 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:16,131 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:16,132 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 14:44:16,132 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:16,147 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 14:44:16,147 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a083dbd0-1895-43c2-a0bd-3c957d9d463f/bin-2019/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:16,164 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 14:44:16,164 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 14:44:16,180 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 14:44:16,181 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 14:44:16,181 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 14:44:16,181 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 14:44:16,181 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 14:44:16,181 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 14:44:16,181 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 14:44:16,181 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 14:44:16,181 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 14:44:16,182 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration5_Loop [2018-12-01 14:44:16,182 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 14:44:16,182 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 14:44:16,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 14:44:16,226 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 14:44:16,226 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 14:44:16,227 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 [2018-12-01 14:44:16,227 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:16,227 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:16,227 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:16,227 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:16,227 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:16,227 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:16,228 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:16,228 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:16,228 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 [2018-12-01 14:44:16,228 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:16,228 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:16,229 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:16,229 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:16,229 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:16,229 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:16,229 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:16,230 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:16,230 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 [2018-12-01 14:44:16,230 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:16,230 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:16,230 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:16,230 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:16,230 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:16,231 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:16,231 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:16,231 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:16,231 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 [2018-12-01 14:44:16,232 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:16,232 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:16,232 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:16,232 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:16,232 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:16,232 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:16,232 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:16,233 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:16,233 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 [2018-12-01 14:44:16,234 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:16,234 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:16,234 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:16,234 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:16,234 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:16,234 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:16,234 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:16,235 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 14:44:16,235 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 [2018-12-01 14:44:16,235 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 14:44:16,236 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 14:44:16,236 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 14:44:16,236 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 14:44:16,236 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 14:44:16,236 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 14:44:16,236 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 14:44:16,238 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 14:44:16,239 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 14:44:16,239 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 14:44:16,240 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 14:44:16,240 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 14:44:16,240 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 14:44:16,240 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2018-12-01 14:44:16,240 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 14:44:16,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:44:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:16,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:44:16,259 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 14:44:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:44:16,271 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-01 14:44:16,271 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 8 transitions. cyclomatic complexity: 1 Second operand 4 states. [2018-12-01 14:44:16,292 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 8 transitions. cyclomatic complexity: 1. Second operand 4 states. Result 18 states and 18 transitions. Complement of second has 11 states. [2018-12-01 14:44:16,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 14:44:16,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 14:44:16,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-12-01 14:44:16,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2018-12-01 14:44:16,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:16,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2018-12-01 14:44:16,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:16,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 8 letters. [2018-12-01 14:44:16,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 14:44:16,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 18 transitions. [2018-12-01 14:44:16,293 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 14:44:16,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2018-12-01 14:44:16,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 14:44:16,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 14:44:16,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 14:44:16,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 14:44:16,294 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 14:44:16,294 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 14:44:16,294 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 14:44:16,294 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-01 14:44:16,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 14:44:16,294 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 14:44:16,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 14:44:16,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 02:44:16 BoogieIcfgContainer [2018-12-01 14:44:16,298 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 14:44:16,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 14:44:16,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 14:44:16,298 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 14:44:16,299 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:44:14" (3/4) ... [2018-12-01 14:44:16,301 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 14:44:16,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 14:44:16,301 INFO L168 Benchmark]: Toolchain (without parser) took 2496.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 953.3 MB in the beginning and 874.4 MB in the end (delta: 78.9 MB). Peak memory consumption was 195.8 MB. Max. memory is 11.5 GB. [2018-12-01 14:44:16,302 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-01 14:44:16,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.56 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-01 14:44:16,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.38 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:44:16,303 INFO L168 Benchmark]: Boogie Preprocessor took 36.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-12-01 14:44:16,304 INFO L168 Benchmark]: RCFGBuilder took 113.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-12-01 14:44:16,304 INFO L168 Benchmark]: BuchiAutomizer took 2180.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 874.4 MB in the end (delta: 227.8 MB). Peak memory consumption was 227.8 MB. Max. memory is 11.5 GB. [2018-12-01 14:44:16,305 INFO L168 Benchmark]: Witness Printer took 2.79 ms. Allocated memory is still 1.1 GB. Free memory is still 874.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:44:16,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 143.56 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.38 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 113.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2180.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 874.4 MB in the end (delta: 227.8 MB). Peak memory consumption was 227.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.79 ms. Allocated memory is still 1.1 GB. Free memory is still 874.4 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 8 terminating modules (3 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * \old(m) and consists of 4 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 41 states and ocurred in iteration 2. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 120 SDtfs, 138 SDslu, 102 SDs, 0 SdLazy, 159 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf94 smp87 dnf100 smp100 tf112 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 4ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 24 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...