./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/RecursiveNonterminating_false-termination_true-valid-memsafety.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_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/RecursiveNonterminating_false-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/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 f21f1881350863de740f7b7321104b53617dd8ce ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:06:27,188 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:06:27,189 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:06:27,195 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:06:27,196 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:06:27,196 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:06:27,197 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:06:27,198 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:06:27,199 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:06:27,200 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:06:27,200 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:06:27,201 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:06:27,201 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:06:27,202 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:06:27,203 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:06:27,203 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:06:27,204 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:06:27,205 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:06:27,206 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:06:27,207 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:06:27,208 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:06:27,209 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:06:27,210 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:06:27,211 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:06:27,211 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:06:27,211 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:06:27,212 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:06:27,212 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:06:27,212 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:06:27,213 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:06:27,213 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:06:27,213 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:06:27,213 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:06:27,214 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:06:27,214 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:06:27,214 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:06:27,214 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 12:06:27,223 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:06:27,223 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:06:27,224 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:06:27,224 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:06:27,224 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:06:27,224 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 12:06:27,225 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 12:06:27,225 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 12:06:27,225 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 12:06:27,225 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 12:06:27,225 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 12:06:27,225 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:06:27,226 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 12:06:27,226 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:06:27,226 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:06:27,226 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 12:06:27,226 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 12:06:27,226 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 12:06:27,226 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:06:27,227 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 12:06:27,227 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:06:27,227 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 12:06:27,227 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:06:27,227 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:06:27,227 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 12:06:27,228 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:06:27,228 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:06:27,228 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 12:06:27,229 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 12:06:27,229 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_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/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 -> f21f1881350863de740f7b7321104b53617dd8ce [2018-11-23 12:06:27,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:06:27,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:06:27,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:06:27,264 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:06:27,264 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:06:27,264 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/RecursiveNonterminating_false-termination_true-valid-memsafety.c [2018-11-23 12:06:27,299 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/data/6dcf7584f/987306cdecc74fa2b0f8906d98527262/FLAG9239ecbba [2018-11-23 12:06:27,608 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:06:27,608 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/sv-benchmarks/c/termination-crafted/RecursiveNonterminating_false-termination_true-valid-memsafety.c [2018-11-23 12:06:27,612 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/data/6dcf7584f/987306cdecc74fa2b0f8906d98527262/FLAG9239ecbba [2018-11-23 12:06:27,623 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/data/6dcf7584f/987306cdecc74fa2b0f8906d98527262 [2018-11-23 12:06:27,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:06:27,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:06:27,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:06:27,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:06:27,630 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:06:27,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e30f55d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27, skipping insertion in model container [2018-11-23 12:06:27,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:06:27,654 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:06:27,760 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:06:27,762 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:06:27,770 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:06:27,778 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:06:27,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27 WrapperNode [2018-11-23 12:06:27,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:06:27,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:06:27,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:06:27,779 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:06:27,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:06:27,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:06:27,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:06:27,798 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:06:27,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... [2018-11-23 12:06:27,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:06:27,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:06:27,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:06:27,807 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:06:27,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/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 12:06:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2018-11-23 12:06:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2018-11-23 12:06:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:06:27,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:06:27,969 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:06:27,969 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 12:06:27,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:06:27 BoogieIcfgContainer [2018-11-23 12:06:27,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:06:27,970 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 12:06:27,970 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 12:06:27,972 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 12:06:27,973 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:06:27,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 12:06:27" (1/3) ... [2018-11-23 12:06:27,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@228327e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:06:27, skipping insertion in model container [2018-11-23 12:06:27,974 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:06:27,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:06:27" (2/3) ... [2018-11-23 12:06:27,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@228327e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:06:27, skipping insertion in model container [2018-11-23 12:06:27,974 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 12:06:27,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:06:27" (3/3) ... [2018-11-23 12:06:27,976 INFO L375 chiAutomizerObserver]: Analyzing ICFG RecursiveNonterminating_false-termination_true-valid-memsafety.c [2018-11-23 12:06:28,010 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:06:28,010 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 12:06:28,010 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 12:06:28,010 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 12:06:28,010 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:06:28,011 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:06:28,011 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 12:06:28,011 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:06:28,011 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 12:06:28,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 12:06:28,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 12:06:28,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:06:28,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:06:28,042 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 12:06:28,042 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 12:06:28,042 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 12:06:28,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 12:06:28,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 12:06:28,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 12:06:28,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 12:06:28,043 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 12:06:28,044 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 12:06:28,048 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L18true assume !!(main_~n~0 <= 2147483646); 11#L19true call rec(main_~n~0, 1 + main_~n~0);< 3#recENTRYtrue [2018-11-23 12:06:28,049 INFO L796 eck$LassoCheckResult]: Loop: 3#recENTRYtrue ~x := #in~x;~y := #in~y; 10#L11true assume ~x <= 23 && ~x >= -42; 5#L12true call rec(2 * ~y - 2, 1 + ~x);< 3#recENTRYtrue [2018-11-23 12:06:28,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:06:28,053 INFO L82 PathProgramCache]: Analyzing trace with hash 39889, now seen corresponding path program 1 times [2018-11-23 12:06:28,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:06:28,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:06:28,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:06:28,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:06:28,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:06:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:06:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:06:28,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:06:28,114 INFO L82 PathProgramCache]: Analyzing trace with hash 29905, now seen corresponding path program 1 times [2018-11-23 12:06:28,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:06:28,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:06:28,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:06:28,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:06:28,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:06:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:06:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:06:28,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:06:28,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1188333313, now seen corresponding path program 1 times [2018-11-23 12:06:28,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:06:28,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:06:28,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:06:28,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:06:28,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:06:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:06:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; [?] assume !!(main_~n~0 <= 2147483646); [?] CALL call rec(main_~n~0, 1 + main_~n~0); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] assume !!(main_~n~0 <= 2147483646); [L19] CALL call rec(main_~n~0, 1 + main_~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] assume !!(main_~n~0 <= 2147483646); [L19] CALL call rec(main_~n~0, 1 + main_~n~0); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] COND FALSE !(!(main_~n~0 <= 2147483646)) [L19] CALL call rec(main_~n~0, 1 + main_~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] COND FALSE !(!(main_~n~0 <= 2147483646)) [L19] CALL call rec(main_~n~0, 1 + main_~n~0); [L17] ~n~0 := #t~nondet0; [L17] havoc #t~nondet0; [L18] COND FALSE !(!(~n~0 <= 2147483646)) [L19] CALL call rec(~n~0, 1 + ~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L17] ~n~0 := #t~nondet0; [L17] havoc #t~nondet0; [L18] COND FALSE !(!(~n~0 <= 2147483646)) [L19] CALL call rec(~n~0, 1 + ~n~0); [L17] int n = __VERIFIER_nondet_int(); [L18] COND FALSE !(!(n<=2147483646)) [L19] CALL rec(n, n + 1) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] ~x := #in~x;~y := #in~y; [?] assume ~x <= 23 && ~x >= -42; [?] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11-L13] assume ~x <= 23 && ~x >= -42; [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11-L13] assume ~x <= 23 && ~x >= -42; [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L11] COND TRUE x <= 23 && x >= -42 [L12] CALL rec(2*y-2, x + 1) ----- [2018-11-23 12:06:28,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 12:06:28 BoogieIcfgContainer [2018-11-23 12:06:28,305 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 12:06:28,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:06:28,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:06:28,306 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:06:28,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:06:27" (3/4) ... [2018-11-23 12:06:28,308 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_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; [?] assume !!(main_~n~0 <= 2147483646); [?] CALL call rec(main_~n~0, 1 + main_~n~0); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] assume !!(main_~n~0 <= 2147483646); [L19] CALL call rec(main_~n~0, 1 + main_~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] assume !!(main_~n~0 <= 2147483646); [L19] CALL call rec(main_~n~0, 1 + main_~n~0); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] COND FALSE !(!(main_~n~0 <= 2147483646)) [L19] CALL call rec(main_~n~0, 1 + main_~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] COND FALSE !(!(main_~n~0 <= 2147483646)) [L19] CALL call rec(main_~n~0, 1 + main_~n~0); [L17] ~n~0 := #t~nondet0; [L17] havoc #t~nondet0; [L18] COND FALSE !(!(~n~0 <= 2147483646)) [L19] CALL call rec(~n~0, 1 + ~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L17] ~n~0 := #t~nondet0; [L17] havoc #t~nondet0; [L18] COND FALSE !(!(~n~0 <= 2147483646)) [L19] CALL call rec(~n~0, 1 + ~n~0); [L17] int n = __VERIFIER_nondet_int(); [L18] COND FALSE !(!(n<=2147483646)) [L19] CALL rec(n, n + 1) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] ~x := #in~x;~y := #in~y; [?] assume ~x <= 23 && ~x >= -42; [?] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11-L13] assume ~x <= 23 && ~x >= -42; [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11-L13] assume ~x <= 23 && ~x >= -42; [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L11] COND TRUE x <= 23 && x >= -42 [L12] CALL rec(2*y-2, x + 1) ----- [2018-11-23 12:06:28,334 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a7fa9b5d-354b-448e-999d-cbfdb253c2d8/bin-2019/uautomizer/witness.graphml [2018-11-23 12:06:28,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:06:28,335 INFO L168 Benchmark]: Toolchain (without parser) took 708.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -116.8 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:06:28,336 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:06:28,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.24 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:06:28,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.34 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:06:28,337 INFO L168 Benchmark]: Boogie Preprocessor took 9.00 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:06:28,338 INFO L168 Benchmark]: RCFGBuilder took 162.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:06:28,338 INFO L168 Benchmark]: BuchiAutomizer took 335.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-23 12:06:28,339 INFO L168 Benchmark]: Witness Printer took 28.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:06:28,341 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.24 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.34 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.00 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 162.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 335.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 28.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {x=0, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d5e65=0, \result=0, \old(x)=0, NULL=0, n=0, \old(y)=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; [?] assume !!(main_~n~0 <= 2147483646); [?] CALL call rec(main_~n~0, 1 + main_~n~0); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] assume !!(main_~n~0 <= 2147483646); [L19] CALL call rec(main_~n~0, 1 + main_~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] assume !!(main_~n~0 <= 2147483646); [L19] CALL call rec(main_~n~0, 1 + main_~n~0); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] COND FALSE !(!(main_~n~0 <= 2147483646)) [L19] CALL call rec(main_~n~0, 1 + main_~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] COND FALSE !(!(main_~n~0 <= 2147483646)) [L19] CALL call rec(main_~n~0, 1 + main_~n~0); [L17] ~n~0 := #t~nondet0; [L17] havoc #t~nondet0; [L18] COND FALSE !(!(~n~0 <= 2147483646)) [L19] CALL call rec(~n~0, 1 + ~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L17] ~n~0 := #t~nondet0; [L17] havoc #t~nondet0; [L18] COND FALSE !(!(~n~0 <= 2147483646)) [L19] CALL call rec(~n~0, 1 + ~n~0); [L17] int n = __VERIFIER_nondet_int(); [L18] COND FALSE !(!(n<=2147483646)) [L19] CALL rec(n, n + 1) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] ~x := #in~x;~y := #in~y; [?] assume ~x <= 23 && ~x >= -42; [?] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11-L13] assume ~x <= 23 && ~x >= -42; [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11-L13] assume ~x <= 23 && ~x >= -42; [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L11] COND TRUE x <= 23 && x >= -42 [L12] CALL rec(2*y-2, x + 1) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; [?] assume !!(main_~n~0 <= 2147483646); [?] CALL call rec(main_~n~0, 1 + main_~n~0); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] assume !!(main_~n~0 <= 2147483646); [L19] CALL call rec(main_~n~0, 1 + main_~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] assume !!(main_~n~0 <= 2147483646); [L19] CALL call rec(main_~n~0, 1 + main_~n~0); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] COND FALSE !(!(main_~n~0 <= 2147483646)) [L19] CALL call rec(main_~n~0, 1 + main_~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~n~0; [L17] main_~n~0 := main_#t~nondet0; [L17] havoc main_#t~nondet0; [L18] COND FALSE !(!(main_~n~0 <= 2147483646)) [L19] CALL call rec(main_~n~0, 1 + main_~n~0); [L17] ~n~0 := #t~nondet0; [L17] havoc #t~nondet0; [L18] COND FALSE !(!(~n~0 <= 2147483646)) [L19] CALL call rec(~n~0, 1 + ~n~0); ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L17] ~n~0 := #t~nondet0; [L17] havoc #t~nondet0; [L18] COND FALSE !(!(~n~0 <= 2147483646)) [L19] CALL call rec(~n~0, 1 + ~n~0); [L17] int n = __VERIFIER_nondet_int(); [L18] COND FALSE !(!(n<=2147483646)) [L19] CALL rec(n, n + 1) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] ~x := #in~x;~y := #in~y; [?] assume ~x <= 23 && ~x >= -42; [?] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11-L13] assume ~x <= 23 && ~x >= -42; [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11-L13] assume ~x <= 23 && ~x >= -42; [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L10-L14] ~x := #in~x; [L10-L14] ~y := #in~y; [L11] COND TRUE ~x <= 23 && ~x >= -42 [L12] CALL call rec(2 * ~y - 2, 1 + ~x); [L11] COND TRUE x <= 23 && x >= -42 [L12] CALL rec(2*y-2, x + 1) ----- Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] int n = __VERIFIER_nondet_int(); [L18] COND FALSE !(!(n<=2147483646)) [L19] CALL rec(n, n + 1) Loop: [L11] COND TRUE x <= 23 && x >= -42 [L12] CALL rec(2*y-2, x + 1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...