./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB14_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB14_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:54:09,976 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:54:09,977 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:54:09,985 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:54:09,985 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:54:09,986 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:54:09,986 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:54:09,987 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:54:09,988 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:54:09,988 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:54:09,989 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:54:09,989 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:54:09,989 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:54:09,990 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:54:09,991 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:54:09,992 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:54:09,992 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:54:09,993 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:54:09,995 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:54:09,996 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:54:09,997 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:54:09,997 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:54:09,999 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:54:09,999 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:54:09,999 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:54:10,000 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:54:10,001 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:54:10,001 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:54:10,002 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:54:10,003 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:54:10,003 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:54:10,003 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:54:10,004 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:54:10,004 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:54:10,004 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:54:10,005 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:54:10,005 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 14:54:10,016 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:54:10,016 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:54:10,017 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:54:10,017 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:54:10,018 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:54:10,018 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:54:10,018 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:54:10,018 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:54:10,018 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:54:10,018 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:54:10,018 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:54:10,019 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:54:10,019 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:54:10,019 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:54:10,019 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:54:10,019 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:54:10,019 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:54:10,019 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:54:10,019 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:54:10,019 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:54:10,020 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:54:10,020 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:54:10,020 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:54:10,020 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:54:10,020 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:54:10,020 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:54:10,020 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:54:10,020 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:54:10,021 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:54:10,021 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_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 [2018-11-18 14:54:10,043 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:54:10,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:54:10,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:54:10,054 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:54:10,054 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:54:10,055 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaB14_true-termination_true-no-overflow.c [2018-11-18 14:54:10,092 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/data/21533b213/c2761ad28dc44e06ae380f1d0d967625/FLAG9981583ed [2018-11-18 14:54:10,431 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:54:10,432 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/sv-benchmarks/c/termination-restricted-15/PastaB14_true-termination_true-no-overflow.c [2018-11-18 14:54:10,436 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/data/21533b213/c2761ad28dc44e06ae380f1d0d967625/FLAG9981583ed [2018-11-18 14:54:10,851 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/data/21533b213/c2761ad28dc44e06ae380f1d0d967625 [2018-11-18 14:54:10,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:54:10,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:54:10,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:54:10,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:54:10,857 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:54:10,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:10,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d608a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10, skipping insertion in model container [2018-11-18 14:54:10,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:10,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:54:10,874 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:54:10,968 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:54:10,970 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:54:10,979 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:54:10,986 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:54:10,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10 WrapperNode [2018-11-18 14:54:10,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:54:10,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:54:10,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:54:10,988 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:54:10,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:10,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:11,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:54:11,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:54:11,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:54:11,006 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:54:11,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:11,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:11,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:11,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:11,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:11,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:11,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... [2018-11-18 14:54:11,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:54:11,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:54:11,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:54:11,016 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:54:11,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:54:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:54:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:54:11,162 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:54:11,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:54:11 BoogieIcfgContainer [2018-11-18 14:54:11,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:54:11,163 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:54:11,163 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:54:11,165 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:54:11,166 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:54:11,166 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:54:10" (1/3) ... [2018-11-18 14:54:11,167 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c1bca71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:54:11, skipping insertion in model container [2018-11-18 14:54:11,167 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:54:11,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:10" (2/3) ... [2018-11-18 14:54:11,167 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c1bca71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:54:11, skipping insertion in model container [2018-11-18 14:54:11,167 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:54:11,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:54:11" (3/3) ... [2018-11-18 14:54:11,169 INFO L375 chiAutomizerObserver]: Analyzing ICFG PastaB14_true-termination_true-no-overflow.c [2018-11-18 14:54:11,213 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:54:11,214 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:54:11,214 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:54:11,214 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:54:11,214 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:54:11,214 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:54:11,215 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:54:11,215 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:54:11,215 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:54:11,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 14:54:11,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 14:54:11,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:54:11,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:54:11,242 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:54:11,242 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 14:54:11,242 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:54:11,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 14:54:11,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 14:54:11,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:54:11,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:54:11,243 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:54:11,243 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 14:54:11,250 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L12-4true [2018-11-18 14:54:11,251 INFO L796 eck$LassoCheckResult]: Loop: 9#L12-4true assume true; 4#L11-1true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 12#L12-3true assume !true; 9#L12-4true [2018-11-18 14:54:11,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:11,255 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 14:54:11,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:11,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:11,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:11,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:11,320 INFO L82 PathProgramCache]: Analyzing trace with hash 35953, now seen corresponding path program 1 times [2018-11-18 14:54:11,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:11,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:11,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:11,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:54:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:54:11,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:54:11,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-18 14:54:11,344 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:54:11,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:54:11,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:54:11,354 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 2 states. [2018-11-18 14:54:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:54:11,358 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-11-18 14:54:11,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:54:11,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2018-11-18 14:54:11,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 14:54:11,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2018-11-18 14:54:11,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-18 14:54:11,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-18 14:54:11,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2018-11-18 14:54:11,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:54:11,364 INFO L705 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-18 14:54:11,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2018-11-18 14:54:11,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-11-18 14:54:11,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 14:54:11,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-11-18 14:54:11,381 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-18 14:54:11,381 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-18 14:54:11,381 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:54:11,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-11-18 14:54:11,382 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 14:54:11,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:54:11,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:54:11,382 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:54:11,382 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 14:54:11,382 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 28#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 29#L12-4 [2018-11-18 14:54:11,383 INFO L796 eck$LassoCheckResult]: Loop: 29#L12-4 assume true; 30#L11-1 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 31#L12-3 assume true; 33#L12-1 assume !(main_~y~0 > 0); 29#L12-4 [2018-11-18 14:54:11,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:11,383 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 14:54:11,383 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:11,383 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:11,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:11,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:11,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1114315, now seen corresponding path program 1 times [2018-11-18 14:54:11,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:11,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:11,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,389 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:54:11,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:54:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:54:11,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:54:11,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:54:11,416 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:54:11,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:54:11,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:54:11,416 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-11-18 14:54:11,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:54:11,423 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-11-18 14:54:11,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:54:11,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-11-18 14:54:11,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 14:54:11,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 9 transitions. [2018-11-18 14:54:11,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-18 14:54:11,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-18 14:54:11,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-11-18 14:54:11,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:54:11,426 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-18 14:54:11,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-11-18 14:54:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-18 14:54:11,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 14:54:11,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-11-18 14:54:11,427 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-18 14:54:11,427 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-18 14:54:11,427 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:54:11,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2018-11-18 14:54:11,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 14:54:11,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:54:11,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:54:11,428 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:54:11,428 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2018-11-18 14:54:11,428 INFO L794 eck$LassoCheckResult]: Stem: 52#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 48#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 49#L12-4 [2018-11-18 14:54:11,428 INFO L796 eck$LassoCheckResult]: Loop: 49#L12-4 assume true; 50#L11-1 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 51#L12-3 assume true; 53#L12-1 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 54#L12-3 assume true; 55#L12-1 assume !(main_~y~0 > 0); 49#L12-4 [2018-11-18 14:54:11,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:11,429 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-11-18 14:54:11,429 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:11,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:11,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:11,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:11,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1070859153, now seen corresponding path program 1 times [2018-11-18 14:54:11,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:11,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:11,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,433 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:54:11,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:11,441 INFO L82 PathProgramCache]: Analyzing trace with hash 150908371, now seen corresponding path program 1 times [2018-11-18 14:54:11,441 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:11,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:11,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:11,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:11,527 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:54:11,527 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:54:11,527 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:54:11,528 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:54:11,528 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 14:54:11,528 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:54:11,528 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:54:11,528 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:54:11,528 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB14_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 14:54:11,528 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:54:11,528 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:54:11,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:54:11,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:54:11,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:54:11,649 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:54:11,649 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:54:11,653 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:54:11,653 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59086d8b-b8f6-4342-b0ea-009338be29d0/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:54:11,678 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 14:54:11,678 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:54:11,703 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 14:54:11,704 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:54:11,704 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:54:11,704 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:54:11,704 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:54:11,705 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 14:54:11,705 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:54:11,705 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:54:11,705 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:54:11,705 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB14_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 14:54:11,705 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:54:11,705 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:54:11,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:54:11,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:54:11,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:54:11,773 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:54:11,777 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 14:54:11,779 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 14:54:11,780 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:54:11,780 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:54:11,780 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:54:11,781 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:54:11,781 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:54:11,783 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:54:11,783 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:54:11,790 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 14:54:11,796 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 14:54:11,796 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 14:54:11,797 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 14:54:11,798 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 14:54:11,798 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 14:54:11,799 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 14:54:11,800 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 14:54:11,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:54:11,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:54:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:54:11,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:54:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:54:11,874 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 14:54:11,874 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-18 14:54:11,917 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 15 states and 17 transitions. Complement of second has 6 states. [2018-11-18 14:54:11,917 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 [2018-11-18 14:54:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 14:54:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-18 14:54:11,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-18 14:54:11,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:54:11,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2018-11-18 14:54:11,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:54:11,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 12 letters. [2018-11-18 14:54:11,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:54:11,920 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2018-11-18 14:54:11,921 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 14:54:11,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-18 14:54:11,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 14:54:11,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 14:54:11,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 14:54:11,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:54:11,921 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:54:11,921 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:54:11,921 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:54:11,921 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 14:54:11,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:54:11,923 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 14:54:11,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 14:54:11,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:54:11 BoogieIcfgContainer [2018-11-18 14:54:11,927 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:54:11,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:54:11,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:54:11,928 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:54:11,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:54:11" (3/4) ... [2018-11-18 14:54:11,930 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:54:11,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:54:11,931 INFO L168 Benchmark]: Toolchain (without parser) took 1078.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -76.3 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:54:11,932 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:54:11,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.26 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:54:11,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:54:11,933 INFO L168 Benchmark]: Boogie Preprocessor took 10.43 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:54:11,933 INFO L168 Benchmark]: RCFGBuilder took 146.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:54:11,934 INFO L168 Benchmark]: BuchiAutomizer took 764.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.0 MB). Peak memory consumption was 85.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:54:11,934 INFO L168 Benchmark]: Witness Printer took 3.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:54:11,936 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.26 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.43 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 146.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 764.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.0 MB). Peak memory consumption was 85.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 21 SDtfs, 7 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf97 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp76 dnf100 smp100 tf107 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...