./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB15_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB15_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/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 3ccb58682df62cf013193e768e6367e3efc261e2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:33:25,798 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:33:25,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:33:25,805 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:33:25,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:33:25,806 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:33:25,807 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:33:25,808 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:33:25,809 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:33:25,810 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:33:25,811 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:33:25,811 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:33:25,812 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:33:25,813 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:33:25,813 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:33:25,814 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:33:25,814 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:33:25,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:33:25,817 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:33:25,818 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:33:25,819 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:33:25,820 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:33:25,821 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:33:25,821 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:33:25,821 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:33:25,822 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:33:25,822 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:33:25,823 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:33:25,823 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:33:25,824 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:33:25,824 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:33:25,825 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:33:25,825 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:33:25,825 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:33:25,826 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:33:25,827 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:33:25,827 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 10:33:25,836 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:33:25,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:33:25,837 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:33:25,837 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:33:25,837 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:33:25,838 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 10:33:25,838 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 10:33:25,838 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 10:33:25,839 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 10:33:25,839 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 10:33:25,839 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 10:33:25,839 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:33:25,839 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 10:33:25,839 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:33:25,839 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:33:25,840 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 10:33:25,840 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 10:33:25,840 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 10:33:25,840 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:33:25,840 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 10:33:25,840 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:33:25,840 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 10:33:25,841 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:33:25,841 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:33:25,841 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 10:33:25,841 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:33:25,841 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:33:25,841 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 10:33:25,844 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 10:33:25,844 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_1ae55667-8f5c-4345-922d-eba20ee1b682/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 -> 3ccb58682df62cf013193e768e6367e3efc261e2 [2018-11-28 10:33:25,869 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:33:25,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:33:25,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:33:25,882 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:33:25,882 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:33:25,883 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaB15_true-termination_true-no-overflow.c [2018-11-28 10:33:25,929 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/data/0dac6c3ed/489506f710b3478e97dddc7ce6ed9ac7/FLAG3e355358b [2018-11-28 10:33:26,239 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:33:26,239 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/sv-benchmarks/c/termination-restricted-15/PastaB15_true-termination_true-no-overflow.c [2018-11-28 10:33:26,243 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/data/0dac6c3ed/489506f710b3478e97dddc7ce6ed9ac7/FLAG3e355358b [2018-11-28 10:33:26,251 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/data/0dac6c3ed/489506f710b3478e97dddc7ce6ed9ac7 [2018-11-28 10:33:26,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:33:26,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:33:26,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:26,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:33:26,256 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:33:26,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fff85be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26, skipping insertion in model container [2018-11-28 10:33:26,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:33:26,273 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:33:26,371 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:26,374 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:33:26,383 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:26,391 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:33:26,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26 WrapperNode [2018-11-28 10:33:26,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:26,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:33:26,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:33:26,392 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:33:26,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:33:26,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:33:26,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:33:26,413 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:33:26,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... [2018-11-28 10:33:26,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:33:26,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:33:26,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:33:26,424 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:33:26,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:33:26,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:33:26,576 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:33:26,576 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 10:33:26,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:26 BoogieIcfgContainer [2018-11-28 10:33:26,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:33:26,577 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 10:33:26,577 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 10:33:26,579 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 10:33:26,579 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:33:26,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 10:33:26" (1/3) ... [2018-11-28 10:33:26,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26c7d85c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:33:26, skipping insertion in model container [2018-11-28 10:33:26,580 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:33:26,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:26" (2/3) ... [2018-11-28 10:33:26,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26c7d85c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:33:26, skipping insertion in model container [2018-11-28 10:33:26,581 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:33:26,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:26" (3/3) ... [2018-11-28 10:33:26,582 INFO L375 chiAutomizerObserver]: Analyzing ICFG PastaB15_true-termination_true-no-overflow.c [2018-11-28 10:33:26,615 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:33:26,615 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 10:33:26,615 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 10:33:26,615 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 10:33:26,615 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:33:26,615 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:33:26,615 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 10:33:26,615 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:33:26,615 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 10:33:26,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 10:33:26,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:33:26,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:33:26,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:33:26,640 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 10:33:26,640 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:33:26,640 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 10:33:26,640 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 10:33:26,641 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:33:26,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:33:26,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:33:26,641 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 10:33:26,641 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:33:26,648 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L14-3true [2018-11-28 10:33:26,648 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 6#L14-2true assume !(main_~y~0 > main_~z~0); 4#L14-3true [2018-11-28 10:33:26,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:26,653 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 10:33:26,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:26,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:26,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:26,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:26,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:26,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2018-11-28 10:33:26,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:26,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:26,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:26,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:26,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:26,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:33:26,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-28 10:33:26,768 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 10:33:26,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:33:26,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:26,778 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-11-28 10:33:26,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:33:26,789 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-11-28 10:33:26,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:33:26,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-11-28 10:33:26,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 10:33:26,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2018-11-28 10:33:26,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 10:33:26,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 10:33:26,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2018-11-28 10:33:26,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:33:26,797 INFO L705 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2018-11-28 10:33:26,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2018-11-28 10:33:26,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2018-11-28 10:33:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 10:33:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2018-11-28 10:33:26,818 INFO L728 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2018-11-28 10:33:26,818 INFO L608 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2018-11-28 10:33:26,818 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 10:33:26,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2018-11-28 10:33:26,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 10:33:26,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:33:26,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:33:26,818 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 10:33:26,818 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 10:33:26,818 INFO L794 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 25#L14-3 [2018-11-28 10:33:26,819 INFO L796 eck$LassoCheckResult]: Loop: 25#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 26#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 27#L14-2 assume !(main_~y~0 > main_~z~0); 25#L14-3 [2018-11-28 10:33:26,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:26,819 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-28 10:33:26,819 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:26,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:26,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:26,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:26,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:26,825 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2018-11-28 10:33:26,825 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:26,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:26,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,826 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 10:33:26,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:26,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:26,836 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2018-11-28 10:33:26,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:26,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:26,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:26,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:26,897 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:33:26,897 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:33:26,898 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:33:26,898 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:33:26,898 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:33:26,898 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:26,898 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:33:26,898 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:33:26,898 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB15_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 10:33:26,898 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:33:26,899 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:33:26,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:26,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:26,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:27,082 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:33:27,083 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,088 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:33:27,088 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:33:27,107 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:33:27,107 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,110 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:33:27,110 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:33:27,125 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:33:27,126 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,128 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:33:27,128 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,147 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:33:27,147 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:33:27,387 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:33:27,389 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:33:27,389 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:33:27,389 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:33:27,389 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:33:27,389 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:33:27,389 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,389 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:33:27,389 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:33:27,389 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB15_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 10:33:27,389 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:33:27,389 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:33:27,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:27,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:27,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:27,467 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:33:27,472 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:33:27,473 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:33:27,474 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:33:27,475 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:33:27,475 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:33:27,475 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:33:27,478 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:33:27,479 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:33:27,484 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:33:27,485 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:33:27,485 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:33:27,485 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:33:27,486 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:33:27,486 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:33:27,487 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:33:27,487 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:33:27,494 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:33:27,494 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:33:27,495 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:33:27,495 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:33:27,496 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:33:27,496 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:33:27,496 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:33:27,497 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:33:27,497 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:33:27,506 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:33:27,514 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 10:33:27,515 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 10:33:27,516 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:33:27,517 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:33:27,517 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:33:27,517 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 10:33:27,518 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:33:27,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:27,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:33:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:27,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:33:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:27,615 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 [2018-11-28 10:33:27,616 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-28 10:33:27,647 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2018-11-28 10:33:27,647 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 [2018-11-28 10:33:27,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 10:33:27,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-28 10:33:27,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-28 10:33:27,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:33:27,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-28 10:33:27,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:33:27,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-28 10:33:27,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:33:27,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2018-11-28 10:33:27,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 10:33:27,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2018-11-28 10:33:27,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 10:33:27,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 10:33:27,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-28 10:33:27,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 10:33:27,652 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 10:33:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-28 10:33:27,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-28 10:33:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 10:33:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-28 10:33:27,653 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 10:33:27,653 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 10:33:27,653 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 10:33:27,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-28 10:33:27,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 10:33:27,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:33:27,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:33:27,654 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-28 10:33:27,654 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 10:33:27,655 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 77#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 78#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 81#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 80#L14-2 [2018-11-28 10:33:27,655 INFO L796 eck$LassoCheckResult]: Loop: 80#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 80#L14-2 [2018-11-28 10:33:27,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:27,655 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2018-11-28 10:33:27,655 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:27,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:27,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:27,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:27,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:27,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:27,667 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-28 10:33:27,667 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:27,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:27,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:27,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:27,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:27,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:27,673 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2018-11-28 10:33:27,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:27,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:27,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:27,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:27,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:27,695 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:33:27,695 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:33:27,695 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:33:27,695 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:33:27,696 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:33:27,696 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,696 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:33:27,696 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:33:27,696 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 10:33:27,696 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:33:27,696 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:33:27,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:27,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:27,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:27,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:27,760 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:33:27,760 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,762 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:33:27,762 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:33:27,782 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:33:27,782 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,787 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:33:27,787 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,815 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:33:27,815 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:33:27,829 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:33:27,829 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=-3}, {ULTIMATE.start_main_~x~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,844 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:33:27,844 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:33:27,862 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:33:27,862 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:27,866 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:33:27,866 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ae55667-8f5c-4345-922d-eba20ee1b682/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 [2018-11-28 10:33:27,884 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:33:27,884 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:33:28,020 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:33:28,022 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:33:28,022 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:33:28,022 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:33:28,022 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:33:28,022 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:33:28,022 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:28,022 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:33:28,022 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:33:28,022 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 10:33:28,022 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:33:28,023 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:33:28,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:28,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:28,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:28,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:33:28,081 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:33:28,081 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:33:28,081 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:33:28,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:33:28,082 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:33:28,082 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:33:28,082 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:33:28,083 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:33:28,084 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:33:28,086 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:33:28,086 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:33:28,087 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:33:28,087 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:33:28,087 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:33:28,087 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:33:28,087 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:33:28,088 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:33:28,088 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:33:28,090 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:33:28,091 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:33:28,091 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:33:28,091 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:33:28,091 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:33:28,091 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:33:28,092 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:33:28,092 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:33:28,096 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:33:28,096 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:33:28,096 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:33:28,097 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:33:28,097 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:33:28,097 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:33:28,097 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:33:28,097 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:33:28,097 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:33:28,100 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:33:28,102 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 10:33:28,103 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 10:33:28,103 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:33:28,103 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:33:28,103 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:33:28,103 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 10:33:28,104 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:33:28,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:28,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:33:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:28,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:33:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:28,129 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 10:33:28,129 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-28 10:33:28,134 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2018-11-28 10:33:28,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 10:33:28,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 10:33:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 10:33:28,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 10:33:28,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:33:28,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 10:33:28,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:33:28,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 10:33:28,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:33:28,136 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2018-11-28 10:33:28,136 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:33:28,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-11-28 10:33:28,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 10:33:28,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 10:33:28,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 10:33:28,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:33:28,137 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:33:28,137 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:33:28,137 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:33:28,137 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 10:33:28,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 10:33:28,137 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:33:28,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 10:33:28,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 10:33:28 BoogieIcfgContainer [2018-11-28 10:33:28,141 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 10:33:28,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:33:28,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:33:28,142 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:33:28,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:26" (3/4) ... [2018-11-28 10:33:28,144 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 10:33:28,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:33:28,145 INFO L168 Benchmark]: Toolchain (without parser) took 1891.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 957.1 MB in the beginning and 945.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 141.2 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:28,146 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:28,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.68 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:28,147 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.26 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:28,148 INFO L168 Benchmark]: Boogie Preprocessor took 11.66 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:28,148 INFO L168 Benchmark]: RCFGBuilder took 152.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:28,149 INFO L168 Benchmark]: BuchiAutomizer took 1564.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.4 MB in the end (delta: 169.3 MB). Peak memory consumption was 169.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:28,149 INFO L168 Benchmark]: Witness Printer took 2.75 ms. Allocated memory is still 1.2 GB. Free memory is still 945.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:28,152 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.68 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 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 20.26 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.66 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 152.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1564.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.4 MB in the end (delta: 169.3 MB). Peak memory consumption was 169.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.75 ms. Allocated memory is still 1.2 GB. Free memory is still 945.4 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 11 SDtfs, 6 SDslu, 3 SDs, 0 SdLazy, 18 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...