./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined_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_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/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 2e63fdedc7f36bfa4d0d39679a5a7ea76cc5ddf1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:44:37,465 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:44:37,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:44:37,473 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:44:37,473 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:44:37,474 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:44:37,475 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:44:37,476 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:44:37,477 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:44:37,477 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:44:37,478 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:44:37,478 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:44:37,479 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:44:37,479 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:44:37,480 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:44:37,481 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:44:37,481 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:44:37,482 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:44:37,484 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:44:37,485 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:44:37,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:44:37,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:44:37,488 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:44:37,488 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:44:37,488 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:44:37,489 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:44:37,489 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:44:37,490 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:44:37,491 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:44:37,491 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:44:37,492 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:44:37,492 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:44:37,492 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:44:37,492 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:44:37,493 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:44:37,493 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:44:37,493 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 10:44:37,504 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:44:37,504 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:44:37,505 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:44:37,505 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:44:37,505 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:44:37,506 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 10:44:37,506 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 10:44:37,506 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 10:44:37,506 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 10:44:37,506 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 10:44:37,506 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 10:44:37,506 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:44:37,506 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 10:44:37,506 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:44:37,507 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:44:37,507 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 10:44:37,507 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 10:44:37,507 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 10:44:37,507 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:44:37,507 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 10:44:37,507 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:44:37,508 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 10:44:37,508 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:44:37,508 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:44:37,508 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 10:44:37,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:44:37,508 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:44:37,508 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 10:44:37,509 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 10:44:37,509 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_920bdc26-3426-43c0-b33a-14dedfd887d9/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 -> 2e63fdedc7f36bfa4d0d39679a5a7ea76cc5ddf1 [2018-11-28 10:44:37,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:44:37,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:44:37,539 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:44:37,540 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:44:37,540 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:44:37,540 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined_true-termination_true-no-overflow.c [2018-11-28 10:44:37,580 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/data/7a904f4ae/c7eaaf1a553147fca8502e3b2374b2ba/FLAG5d6fafb87 [2018-11-28 10:44:37,971 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:44:37,972 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/sv-benchmarks/c/termination-restricted-15/MinusUserDefined_true-termination_true-no-overflow.c [2018-11-28 10:44:37,975 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/data/7a904f4ae/c7eaaf1a553147fca8502e3b2374b2ba/FLAG5d6fafb87 [2018-11-28 10:44:37,983 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/bin-2019/uautomizer/data/7a904f4ae/c7eaaf1a553147fca8502e3b2374b2ba [2018-11-28 10:44:37,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:44:37,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:44:37,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:44:37,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:44:37,989 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:44:37,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:37" (1/1) ... [2018-11-28 10:44:37,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279c5be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:37, skipping insertion in model container [2018-11-28 10:44:37,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:37" (1/1) ... [2018-11-28 10:44:37,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:44:38,006 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:44:38,096 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:44:38,098 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:44:38,107 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:44:38,115 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:44:38,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38 WrapperNode [2018-11-28 10:44:38,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:44:38,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:44:38,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:44:38,116 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:44:38,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... [2018-11-28 10:44:38,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... [2018-11-28 10:44:38,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:44:38,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:44:38,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:44:38,138 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:44:38,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... [2018-11-28 10:44:38,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... [2018-11-28 10:44:38,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... [2018-11-28 10:44:38,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... [2018-11-28 10:44:38,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... [2018-11-28 10:44:38,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... [2018-11-28 10:44:38,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... [2018-11-28 10:44:38,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:44:38,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:44:38,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:44:38,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:44:38,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/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 10:44:38,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:44:38,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:44:38,333 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:44:38,333 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-28 10:44:38,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:38 BoogieIcfgContainer [2018-11-28 10:44:38,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:44:38,334 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 10:44:38,334 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 10:44:38,337 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 10:44:38,338 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:44:38,338 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 10:44:37" (1/3) ... [2018-11-28 10:44:38,339 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@728ea235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:44:38, skipping insertion in model container [2018-11-28 10:44:38,339 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:44:38,339 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:38" (2/3) ... [2018-11-28 10:44:38,340 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@728ea235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:44:38, skipping insertion in model container [2018-11-28 10:44:38,340 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:44:38,340 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:38" (3/3) ... [2018-11-28 10:44:38,341 INFO L375 chiAutomizerObserver]: Analyzing ICFG MinusUserDefined_true-termination_true-no-overflow.c [2018-11-28 10:44:38,388 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:44:38,389 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 10:44:38,389 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 10:44:38,389 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 10:44:38,389 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:44:38,389 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:44:38,390 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 10:44:38,390 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:44:38,390 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 10:44:38,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 10:44:38,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2018-11-28 10:44:38,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:44:38,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:44:38,426 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 10:44:38,426 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 10:44:38,426 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 10:44:38,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 10:44:38,427 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2018-11-28 10:44:38,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:44:38,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:44:38,427 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 10:44:38,427 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 10:44:38,434 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 4#L13-2true [2018-11-28 10:44:38,434 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 4#L13-2true [2018-11-28 10:44:38,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:38,440 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 10:44:38,441 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:38,442 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:38,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:38,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:38,525 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-28 10:44:38,526 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:38,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:38,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:38,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:38,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 10:44:38,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:38,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:38,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:38,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,621 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:44:38,622 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:44:38,622 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:44:38,622 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:44:38,622 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:44:38,622 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:44:38,622 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:44:38,623 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:44:38,623 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 10:44:38,623 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:44:38,623 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:44:38,639 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 10:44:38,654 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 10:44:38,657 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 10:44:38,660 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 10:44:38,722 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:44:38,722 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/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 10:44:38,728 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:44:38,729 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/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 10:44:38,746 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:44:38,746 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:44:38,764 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:44:38,765 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:44:38,765 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:44:38,765 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:44:38,765 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:44:38,765 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:44:38,765 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:44:38,765 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:44:38,765 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:44:38,765 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 10:44:38,765 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:44:38,765 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:44:38,766 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 10:44:38,776 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 10:44:38,783 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 10:44:38,786 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 10:44:38,848 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:44:38,851 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:44:38,853 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 10:44:38,854 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:44:38,854 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:44:38,854 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:44:38,854 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:44:38,855 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:44:38,856 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:44:38,856 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:44:38,862 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:44:38,866 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 10:44:38,867 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 10:44:38,868 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:44:38,868 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:44:38,869 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:44:38,869 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 10:44:38,870 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:44:38,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:44:38,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:44:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:44:38,897 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:44:38,897 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 10:44:38,907 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 10:44:38,908 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 2 states. [2018-11-28 10:44:38,939 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 2 states. Result 23 states and 39 transitions. Complement of second has 5 states. [2018-11-28 10:44:38,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 10:44:38,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 10:44:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-28 10:44:38,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 1 letters. [2018-11-28 10:44:38,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:44:38,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 10:44:38,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:44:38,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 10:44:38,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:44:38,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 39 transitions. [2018-11-28 10:44:38,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:44:38,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 9 states and 16 transitions. [2018-11-28 10:44:38,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 10:44:38,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 10:44:38,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 16 transitions. [2018-11-28 10:44:38,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 10:44:38,956 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2018-11-28 10:44:38,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 16 transitions. [2018-11-28 10:44:38,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-11-28 10:44:38,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-28 10:44:38,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2018-11-28 10:44:38,980 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2018-11-28 10:44:38,980 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2018-11-28 10:44:38,980 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 10:44:38,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 15 transitions. [2018-11-28 10:44:38,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:44:38,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:44:38,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:44:38,981 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 10:44:38,981 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:44:38,981 INFO L794 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 61#L13-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 63#L21-3 [2018-11-28 10:44:38,981 INFO L796 eck$LassoCheckResult]: Loop: 63#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 65#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 63#L21-3 [2018-11-28 10:44:38,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:38,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2018-11-28 10:44:38,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:38,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:38,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:38,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:38,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1640, now seen corresponding path program 1 times [2018-11-28 10:44:38,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:38,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:38,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:38,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:38,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:38,995 INFO L82 PathProgramCache]: Analyzing trace with hash 961679, now seen corresponding path program 1 times [2018-11-28 10:44:38,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:38,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:38,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:38,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:39,028 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:44:39,028 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:44:39,028 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:44:39,028 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:44:39,028 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:44:39,028 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:44:39,028 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:44:39,028 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:44:39,028 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 10:44:39,028 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:44:39,029 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:44:39,030 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 10:44:39,032 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 10:44:39,036 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 10:44:39,043 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 10:44:39,045 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 10:44:39,072 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:44:39,072 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/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 10:44:39,074 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:44:39,074 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:44:39,090 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:44:39,091 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_920bdc26-3426-43c0-b33a-14dedfd887d9/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 10:44:39,093 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:44:39,093 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/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 10:44:39,109 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:44:39,109 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:44:39,163 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:44:39,164 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:44:39,164 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:44:39,164 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:44:39,164 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:44:39,164 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:44:39,165 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:44:39,165 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:44:39,165 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:44:39,165 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 10:44:39,165 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:44:39,165 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:44:39,166 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 10:44:39,169 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 10:44:39,172 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 10:44:39,175 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 10:44:39,177 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 10:44:39,241 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:44:39,241 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:44:39,242 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 10:44:39,243 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:44:39,243 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:44:39,243 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:44:39,243 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:44:39,246 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:44:39,246 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:44:39,250 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:44:39,250 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 10:44:39,251 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:44:39,251 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:44:39,255 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:44:39,255 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:44:39,255 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:44:39,256 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:44:39,256 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:44:39,260 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:44:39,262 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 10:44:39,262 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 10:44:39,263 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:44:39,263 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:44:39,263 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:44:39,263 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-28 10:44:39,263 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:44:39,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:44:39,301 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:44:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:44:39,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:44:39,327 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 10:44:39,328 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 10:44:39,328 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 15 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-11-28 10:44:39,356 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 15 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 22 states and 34 transitions. Complement of second has 7 states. [2018-11-28 10:44:39,359 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 10:44:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 10:44:39,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-28 10:44:39,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 10:44:39,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:44:39,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 10:44:39,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:44:39,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-28 10:44:39,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:44:39,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions. [2018-11-28 10:44:39,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:44:39,363 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 23 transitions. [2018-11-28 10:44:39,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 10:44:39,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 10:44:39,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 23 transitions. [2018-11-28 10:44:39,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 10:44:39,363 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2018-11-28 10:44:39,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 23 transitions. [2018-11-28 10:44:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 10:44:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 10:44:39,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2018-11-28 10:44:39,365 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2018-11-28 10:44:39,365 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2018-11-28 10:44:39,365 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 10:44:39,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 23 transitions. [2018-11-28 10:44:39,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:44:39,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:44:39,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:44:39,366 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-28 10:44:39,366 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:44:39,366 INFO L794 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 127#L13-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 128#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 140#L21-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 137#L21-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 135#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 130#L21-3 [2018-11-28 10:44:39,366 INFO L796 eck$LassoCheckResult]: Loop: 130#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 131#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 130#L21-3 [2018-11-28 10:44:39,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:39,367 INFO L82 PathProgramCache]: Analyzing trace with hash 924176399, now seen corresponding path program 1 times [2018-11-28 10:44:39,367 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:39,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:39,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:39,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:39,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:44:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:44:39,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:44:39,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 10:44:39,410 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 10:44:39,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:39,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1640, now seen corresponding path program 2 times [2018-11-28 10:44:39,411 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:39,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:39,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:39,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:39,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:39,442 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:44:39,442 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:44:39,442 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:44:39,442 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:44:39,442 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:44:39,442 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:44:39,442 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:44:39,442 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:44:39,442 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 10:44:39,443 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:44:39,443 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:44:39,444 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 10:44:39,446 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 10:44:39,453 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 10:44:39,455 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 10:44:39,457 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 10:44:39,493 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:44:39,493 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/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 10:44:39,499 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:44:39,499 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:44:39,514 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:44:39,514 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/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 10:44:39,517 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:44:39,517 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_920bdc26-3426-43c0-b33a-14dedfd887d9/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 10:44:39,532 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:44:39,533 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:44:39,581 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:44:39,582 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:44:39,582 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:44:39,582 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:44:39,582 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:44:39,582 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:44:39,582 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:44:39,582 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:44:39,582 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:44:39,582 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 10:44:39,582 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:44:39,582 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:44:39,583 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 10:44:39,586 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 10:44:39,589 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 10:44:39,591 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 10:44:39,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:44:39,626 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:44:39,626 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:44:39,627 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 10:44:39,627 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:44:39,628 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:44:39,628 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:44:39,628 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:44:39,629 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:44:39,629 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:44:39,632 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:44:39,632 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 10:44:39,633 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:44:39,633 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:44:39,633 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:44:39,633 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:44:39,633 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:44:39,633 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:44:39,633 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:44:39,636 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:44:39,637 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 10:44:39,637 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 10:44:39,638 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:44:39,638 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:44:39,638 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:44:39,638 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-28 10:44:39,638 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:44:39,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:44:39,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:44:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:44:39,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:44:39,668 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 10:44:39,669 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 10:44:39,669 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 13 Second operand 3 states. [2018-11-28 10:44:39,689 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 43 states and 65 transitions. Complement of second has 7 states. [2018-11-28 10:44:39,690 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 10:44:39,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 10:44:39,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-28 10:44:39,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 10:44:39,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:44:39,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 10:44:39,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:44:39,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-28 10:44:39,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:44:39,691 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 65 transitions. [2018-11-28 10:44:39,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:44:39,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 45 transitions. [2018-11-28 10:44:39,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 10:44:39,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 10:44:39,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 45 transitions. [2018-11-28 10:44:39,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 10:44:39,693 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 45 transitions. [2018-11-28 10:44:39,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 45 transitions. [2018-11-28 10:44:39,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2018-11-28 10:44:39,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-28 10:44:39,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 30 transitions. [2018-11-28 10:44:39,695 INFO L728 BuchiCegarLoop]: Abstraction has 19 states and 30 transitions. [2018-11-28 10:44:39,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 10:44:39,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 10:44:39,698 INFO L87 Difference]: Start difference. First operand 19 states and 30 transitions. Second operand 5 states. [2018-11-28 10:44:39,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:44:39,725 INFO L93 Difference]: Finished difference Result 13 states and 18 transitions. [2018-11-28 10:44:39,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 10:44:39,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-28 10:44:39,727 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:44:39,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2018-11-28 10:44:39,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 10:44:39,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 10:44:39,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 10:44:39,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:44:39,727 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:44:39,727 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:44:39,727 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:44:39,727 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 10:44:39,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 10:44:39,728 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:44:39,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 10:44:39,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 10:44:39 BoogieIcfgContainer [2018-11-28 10:44:39,734 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 10:44:39,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:44:39,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:44:39,734 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:44:39,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:38" (3/4) ... [2018-11-28 10:44:39,738 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 10:44:39,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:44:39,738 INFO L168 Benchmark]: Toolchain (without parser) took 1752.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 952.2 MB in the beginning and 928.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 173.1 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:39,739 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:44:39,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.39 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:39,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.28 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:44:39,741 INFO L168 Benchmark]: Boogie Preprocessor took 15.60 ms. Allocated memory is still 1.0 GB. Free memory was 941.4 MB in the beginning and 938.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:39,741 INFO L168 Benchmark]: RCFGBuilder took 180.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:39,741 INFO L168 Benchmark]: BuchiAutomizer took 1399.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.1 MB in the end (delta: 204.7 MB). Peak memory consumption was 204.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:39,742 INFO L168 Benchmark]: Witness Printer took 3.55 ms. Allocated memory is still 1.2 GB. Free memory is still 928.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:44:39,745 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 129.39 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.28 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.60 ms. Allocated memory is still 1.0 GB. Free memory was 941.4 MB in the beginning and 938.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1399.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.1 MB in the end (delta: 204.7 MB). Peak memory consumption was 204.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.55 ms. Allocated memory is still 1.2 GB. Free memory is still 928.1 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 43 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...