./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Flip_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Flip_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/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 450446710566ec183df799a31b6732fa6118716d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 12:29:21,657 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:29:21,658 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:29:21,666 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:29:21,666 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:29:21,667 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:29:21,668 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:29:21,669 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:29:21,670 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:29:21,671 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:29:21,671 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:29:21,672 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:29:21,672 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:29:21,673 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:29:21,674 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:29:21,674 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:29:21,675 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:29:21,676 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:29:21,677 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:29:21,678 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:29:21,679 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:29:21,680 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:29:21,682 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:29:21,682 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:29:21,682 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:29:21,683 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:29:21,684 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:29:21,684 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:29:21,685 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:29:21,685 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:29:21,686 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:29:21,686 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:29:21,686 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:29:21,686 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:29:21,687 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:29:21,687 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:29:21,688 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 12:29:21,695 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:29:21,695 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:29:21,696 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:29:21,696 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:29:21,696 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:29:21,697 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 12:29:21,697 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 12:29:21,697 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 12:29:21,697 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 12:29:21,697 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 12:29:21,697 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 12:29:21,697 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:29:21,697 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 12:29:21,698 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:29:21,698 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:29:21,698 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 12:29:21,698 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 12:29:21,698 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 12:29:21,698 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:29:21,698 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 12:29:21,699 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:29:21,699 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 12:29:21,699 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:29:21,699 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:29:21,699 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 12:29:21,699 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:29:21,699 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:29:21,699 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 12:29:21,700 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 12:29:21,700 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_d4c9c550-9f92-482d-9692-3c1d255978dc/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 -> 450446710566ec183df799a31b6732fa6118716d [2018-11-23 12:29:21,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:29:21,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:29:21,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:29:21,739 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:29:21,740 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:29:21,740 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/Flip_false-termination_true-no-overflow.c [2018-11-23 12:29:21,787 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/data/89e30476c/00789e37319845d1b7ddc2ebadf3f07f/FLAGf27ab6082 [2018-11-23 12:29:22,169 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:29:22,169 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/sv-benchmarks/c/termination-restricted-15/Flip_false-termination_true-no-overflow.c [2018-11-23 12:29:22,172 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/data/89e30476c/00789e37319845d1b7ddc2ebadf3f07f/FLAGf27ab6082 [2018-11-23 12:29:22,181 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/data/89e30476c/00789e37319845d1b7ddc2ebadf3f07f [2018-11-23 12:29:22,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:29:22,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:29:22,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:29:22,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:29:22,186 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:29:22,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ef1641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22, skipping insertion in model container [2018-11-23 12:29:22,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:29:22,208 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:29:22,304 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:29:22,306 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:29:22,314 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:29:22,321 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:29:22,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22 WrapperNode [2018-11-23 12:29:22,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:29:22,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:29:22,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:29:22,322 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:29:22,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:29:22,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:29:22,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:29:22,340 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:29:22,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... [2018-11-23 12:29:22,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:29:22,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:29:22,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:29:22,351 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:29:22,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/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 [2018-11-23 12:29:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:29:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:29:22,498 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:29:22,498 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 12:29:22,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:29:22 BoogieIcfgContainer [2018-11-23 12:29:22,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:29:22,499 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 12:29:22,499 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 12:29:22,502 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 12:29:22,502 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:29:22,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 12:29:22" (1/3) ... [2018-11-23 12:29:22,503 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7eae77fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:29:22, skipping insertion in model container [2018-11-23 12:29:22,503 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:29:22,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:22" (2/3) ... [2018-11-23 12:29:22,504 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7eae77fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:29:22, skipping insertion in model container [2018-11-23 12:29:22,504 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:29:22,504 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:29:22" (3/3) ... [2018-11-23 12:29:22,505 INFO L375 chiAutomizerObserver]: Analyzing ICFG Flip_false-termination_true-no-overflow.c [2018-11-23 12:29:22,541 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:29:22,542 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 12:29:22,542 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 12:29:22,542 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 12:29:22,542 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:29:22,542 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:29:22,542 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 12:29:22,542 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:29:22,543 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 12:29:22,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-23 12:29:22,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 12:29:22,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:29:22,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:29:22,570 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 12:29:22,571 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 12:29:22,571 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 12:29:22,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-23 12:29:22,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 12:29:22,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:29:22,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:29:22,572 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 12:29:22,572 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 12:29:22,577 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0;havoc main_~i~0;havoc main_~j~0;havoc main_~t~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~t~0 := 0; 5#L13-2true [2018-11-23 12:29:22,577 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(0 != main_~i~0 && 0 != main_~j~0);main_~t~0 := main_~i~0;main_~i~0 := main_~j~0;main_~j~0 := main_~t~0; 5#L13-2true [2018-11-23 12:29:22,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:29:22,581 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 12:29:22,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:29:22,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:29:22,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:29:22,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:29:22,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:29:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:29:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:29:22,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:29:22,642 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-23 12:29:22,642 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:29:22,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:29:22,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:29:22,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:29:22,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:29:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:29:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:29:22,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:29:22,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 12:29:22,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:29:22,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:29:22,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:29:22,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:29:22,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:29:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:29:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:29:22,745 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 12:29:22,746 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 12:29:22,746 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 12:29:22,746 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 12:29:22,747 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 12:29:22,747 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 12:29:22,747 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 12:29:22,747 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 12:29:22,747 INFO L131 ssoRankerPreferences]: Filename of dumped script: Flip_false-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-23 12:29:22,747 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 12:29:22,747 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 12:29:22,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:29:22,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:29:22,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:29:22,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:29:22,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:29:22,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 12:29:22,974 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 12:29:22,974 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/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 [2018-11-23 12:29:22,985 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:29:22,985 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:29:22,990 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 12:29:22,990 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/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 [2018-11-23 12:29:23,005 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:29:23,005 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:29:23,029 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 12:29:23,030 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_d4c9c550-9f92-482d-9692-3c1d255978dc/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 [2018-11-23 12:29:23,033 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:29:23,033 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:29:23,035 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 12:29:23,036 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/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 [2018-11-23 12:29:23,051 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:29:23,051 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:29:23,053 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 12:29:23,053 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/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 [2018-11-23 12:29:23,067 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:29:23,067 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:29:23,082 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 12:29:23,082 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_d4c9c550-9f92-482d-9692-3c1d255978dc/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 [2018-11-23 12:29:23,084 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 12:29:23,084 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/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 [2018-11-23 12:29:23,117 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 12:29:23,117 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 12:29:23,303 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 12:29:23,303 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~j~0=-7, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~i~0=-7} Generalized eigenvectors: [{ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=-7, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=-1, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=1, ULTIMATE.start_main_~i~0=0}] Lambdas: [0, 1, 0] Nus: [0, 1] [2018-11-23 12:29:23,323 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2018-11-23 12:29:23,324 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2018-11-23 12:29:23,324 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2018-11-23 12:29:23,324 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2018-11-23 12:29:23,325 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2018-11-23 12:29:23,325 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0;havoc main_~i~0;havoc main_~j~0;havoc main_~t~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~t~0 := 0; [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; [L6] havoc ~i~0; [L7] havoc ~j~0; [L8] havoc ~t~0; [L9] ~i~0 := #t~nondet0; [L9] havoc #t~nondet0; [L10] ~j~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] ~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L6] havoc ~i~0; [L7] havoc ~j~0; [L8] havoc ~t~0; [L9] ~i~0 := #t~nondet0; [L9] havoc #t~nondet0; [L10] ~j~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] ~t~0 := 0; [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !!(0 != main_~i~0 && 0 != main_~j~0);main_~t~0 := main_~i~0;main_~i~0 := main_~j~0;main_~j~0 := main_~t~0; [L13-L17] assume !!(0 != main_~i~0 && 0 != main_~j~0); [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L13-L17] assume !!(0 != main_~i~0 && 0 != main_~j~0); [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; [L13-L17] COND FALSE !(!(0 != main_~i~0 && 0 != main_~j~0)) [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L13-L17] COND FALSE !(!(0 != main_~i~0 && 0 != main_~j~0)) [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; [L13-L17] COND FALSE !(!(0 != ~i~0 && 0 != ~j~0)) [L14] ~t~0 := ~i~0; [L15] ~i~0 := ~j~0; [L16] ~j~0 := ~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L13-L17] COND FALSE !(!(0 != ~i~0 && 0 != ~j~0)) [L14] ~t~0 := ~i~0; [L15] ~i~0 := ~j~0; [L16] ~j~0 := ~t~0; [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t ----- [2018-11-23 12:29:23,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 12:29:23 BoogieIcfgContainer [2018-11-23 12:29:23,335 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 12:29:23,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:29:23,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:29:23,336 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:29:23,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:29:22" (3/4) ... [2018-11-23 12:29:23,338 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0;havoc main_~i~0;havoc main_~j~0;havoc main_~t~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~t~0 := 0; [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; [L6] havoc ~i~0; [L7] havoc ~j~0; [L8] havoc ~t~0; [L9] ~i~0 := #t~nondet0; [L9] havoc #t~nondet0; [L10] ~j~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] ~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L6] havoc ~i~0; [L7] havoc ~j~0; [L8] havoc ~t~0; [L9] ~i~0 := #t~nondet0; [L9] havoc #t~nondet0; [L10] ~j~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] ~t~0 := 0; [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !!(0 != main_~i~0 && 0 != main_~j~0);main_~t~0 := main_~i~0;main_~i~0 := main_~j~0;main_~j~0 := main_~t~0; [L13-L17] assume !!(0 != main_~i~0 && 0 != main_~j~0); [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L13-L17] assume !!(0 != main_~i~0 && 0 != main_~j~0); [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; [L13-L17] COND FALSE !(!(0 != main_~i~0 && 0 != main_~j~0)) [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L13-L17] COND FALSE !(!(0 != main_~i~0 && 0 != main_~j~0)) [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; [L13-L17] COND FALSE !(!(0 != ~i~0 && 0 != ~j~0)) [L14] ~t~0 := ~i~0; [L15] ~i~0 := ~j~0; [L16] ~j~0 := ~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L13-L17] COND FALSE !(!(0 != ~i~0 && 0 != ~j~0)) [L14] ~t~0 := ~i~0; [L15] ~i~0 := ~j~0; [L16] ~j~0 := ~t~0; [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t ----- [2018-11-23 12:29:23,366 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d4c9c550-9f92-482d-9692-3c1d255978dc/bin-2019/uautomizer/witness.graphml [2018-11-23 12:29:23,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:29:23,367 INFO L168 Benchmark]: Toolchain (without parser) took 1183.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -73.6 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:23,368 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:29:23,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.87 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:23,369 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.77 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:23,369 INFO L168 Benchmark]: Boogie Preprocessor took 10.90 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:29:23,370 INFO L168 Benchmark]: RCFGBuilder took 147.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:23,370 INFO L168 Benchmark]: BuchiAutomizer took 836.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:23,371 INFO L168 Benchmark]: Witness Printer took 30.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:23,375 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.87 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.77 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.90 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 147.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 836.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. * Witness Printer took 30.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax161 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq214 hnf93 smp100 dnf276 smp100 tf100 neg93 sie114 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 13]: Nontermination argument in form of an infinite program execution. [2018-11-23 12:29:23,381 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2018-11-23 12:29:23,382 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2018-11-23 12:29:23,382 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2018-11-23 12:29:23,382 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2018-11-23 12:29:23,383 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2018-11-23 12:29:23,383 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2018-11-23 12:29:23,383 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2018-11-23 12:29:23,384 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2018-11-23 12:29:23,384 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2018-11-23 12:29:23,384 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2018-11-23 12:29:23,384 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2018-11-23 12:29:23,384 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {t=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d56540e=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@85e1eb3=0, ~unnamed0~0~false=0, i=0, j=0} State at position 1 is {t=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d56540e=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@85e1eb3=0, ~unnamed0~0~false=0, i=-7, j=-7} For i>1, the state at position i is {t=0 + sum_{k=0}^i -7*0^k + -1 + 1*0^k + 1*k, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d56540e=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@85e1eb3=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, i=-7 + sum_{k=0}^i 0, j=-7 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [0, 1, 0] Mus: [0, 1] - NonterminatingLassoResult [Line: 13]: Nonterminating execution ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0;havoc main_~i~0;havoc main_~j~0;havoc main_~t~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~t~0 := 0; [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; [L6] havoc ~i~0; [L7] havoc ~j~0; [L8] havoc ~t~0; [L9] ~i~0 := #t~nondet0; [L9] havoc #t~nondet0; [L10] ~j~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] ~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L6] havoc ~i~0; [L7] havoc ~j~0; [L8] havoc ~t~0; [L9] ~i~0 := #t~nondet0; [L9] havoc #t~nondet0; [L10] ~j~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] ~t~0 := 0; [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !!(0 != main_~i~0 && 0 != main_~j~0);main_~t~0 := main_~i~0;main_~i~0 := main_~j~0;main_~j~0 := main_~t~0; [L13-L17] assume !!(0 != main_~i~0 && 0 != main_~j~0); [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L13-L17] assume !!(0 != main_~i~0 && 0 != main_~j~0); [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; [L13-L17] COND FALSE !(!(0 != main_~i~0 && 0 != main_~j~0)) [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L13-L17] COND FALSE !(!(0 != main_~i~0 && 0 != main_~j~0)) [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; [L13-L17] COND FALSE !(!(0 != ~i~0 && 0 != ~j~0)) [L14] ~t~0 := ~i~0; [L15] ~i~0 := ~j~0; [L16] ~j~0 := ~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L13-L17] COND FALSE !(!(0 != ~i~0 && 0 != ~j~0)) [L14] ~t~0 := ~i~0; [L15] ~i~0 := ~j~0; [L16] ~j~0 := ~t~0; [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0;havoc main_~i~0;havoc main_~j~0;havoc main_~t~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~t~0 := 0; [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0; [L6] havoc main_~i~0; [L7] havoc main_~j~0; [L8] havoc main_~t~0; [L9] main_~i~0 := main_#t~nondet0; [L9] havoc main_#t~nondet0; [L10] main_~j~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] main_~t~0 := 0; [L6] havoc ~i~0; [L7] havoc ~j~0; [L8] havoc ~t~0; [L9] ~i~0 := #t~nondet0; [L9] havoc #t~nondet0; [L10] ~j~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] ~t~0 := 0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L6] havoc ~i~0; [L7] havoc ~j~0; [L8] havoc ~t~0; [L9] ~i~0 := #t~nondet0; [L9] havoc #t~nondet0; [L10] ~j~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] ~t~0 := 0; [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !!(0 != main_~i~0 && 0 != main_~j~0);main_~t~0 := main_~i~0;main_~i~0 := main_~j~0;main_~j~0 := main_~t~0; [L13-L17] assume !!(0 != main_~i~0 && 0 != main_~j~0); [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L13-L17] assume !!(0 != main_~i~0 && 0 != main_~j~0); [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; [L13-L17] COND FALSE !(!(0 != main_~i~0 && 0 != main_~j~0)) [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L13-L17] COND FALSE !(!(0 != main_~i~0 && 0 != main_~j~0)) [L14] main_~t~0 := main_~i~0; [L15] main_~i~0 := main_~j~0; [L16] main_~j~0 := main_~t~0; [L13-L17] COND FALSE !(!(0 != ~i~0 && 0 != ~j~0)) [L14] ~t~0 := ~i~0; [L15] ~i~0 := ~j~0; [L16] ~j~0 := ~t~0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L13-L17] COND FALSE !(!(0 != ~i~0 && 0 != ~j~0)) [L14] ~t~0 := ~i~0; [L15] ~i~0 := ~j~0; [L16] ~j~0 := ~t~0; [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t ----- Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 Loop: [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...