./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_3_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_3_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/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 32bit --witnessprinter.graph.data.programhash bf39cb82696559ce2a61c1f997102826529c1f07 ................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-1dbac8b [2018-11-10 05:16:15,339 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:16:15,340 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:16:15,347 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:16:15,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:16:15,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:16:15,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:16:15,350 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:16:15,351 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:16:15,351 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:16:15,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:16:15,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:16:15,353 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:16:15,353 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:16:15,354 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:16:15,355 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:16:15,355 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:16:15,356 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:16:15,359 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:16:15,360 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:16:15,361 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:16:15,361 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:16:15,364 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:16:15,364 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:16:15,364 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:16:15,365 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:16:15,366 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:16:15,366 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:16:15,367 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:16:15,368 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:16:15,368 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:16:15,368 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:16:15,368 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:16:15,369 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:16:15,370 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:16:15,370 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:16:15,371 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 05:16:15,381 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:16:15,381 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:16:15,382 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:16:15,382 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:16:15,382 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 05:16:15,383 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 05:16:15,383 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 05:16:15,383 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 05:16:15,383 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 05:16:15,383 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 05:16:15,383 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 05:16:15,383 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:16:15,383 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:16:15,383 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 05:16:15,384 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:16:15,384 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:16:15,384 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:16:15,384 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 05:16:15,384 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 05:16:15,384 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 05:16:15,384 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:16:15,385 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:16:15,385 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 05:16:15,385 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 05:16:15,385 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:16:15,385 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:16:15,385 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 05:16:15,385 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:16:15,385 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 05:16:15,385 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 05:16:15,386 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 05:16:15,387 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_026c0d36-33e2-45a9-b12e-675414926db4/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf39cb82696559ce2a61c1f997102826529c1f07 [2018-11-10 05:16:15,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:16:15,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:16:15,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:16:15,420 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:16:15,420 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:16:15,421 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_3_true-unreach-call_false-termination.i [2018-11-10 05:16:15,456 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/data/5c1339f21/34c95444e636434faf1c3088c2ac294d/FLAG6542f30aa [2018-11-10 05:16:15,753 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:16:15,753 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/sv-benchmarks/c/loops/while_infinite_loop_3_true-unreach-call_false-termination.i [2018-11-10 05:16:15,757 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/data/5c1339f21/34c95444e636434faf1c3088c2ac294d/FLAG6542f30aa [2018-11-10 05:16:15,765 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/data/5c1339f21/34c95444e636434faf1c3088c2ac294d [2018-11-10 05:16:15,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:16:15,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:16:15,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:16:15,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:16:15,772 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:16:15,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb7591c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15, skipping insertion in model container [2018-11-10 05:16:15,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:16:15,790 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:16:15,881 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:16:15,884 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:16:15,893 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:16:15,900 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:16:15,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15 WrapperNode [2018-11-10 05:16:15,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:16:15,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:16:15,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:16:15,901 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:16:15,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:16:15,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:16:15,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:16:15,920 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:16:15,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... [2018-11-10 05:16:15,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:16:15,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:16:15,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:16:15,934 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:16:15,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/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 [2018-11-10 05:16:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:16:16,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:16:16,116 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:16:16,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:16:16 BoogieIcfgContainer [2018-11-10 05:16:16,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:16:16,117 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 05:16:16,117 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 05:16:16,121 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 05:16:16,121 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 05:16:16,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 05:16:15" (1/3) ... [2018-11-10 05:16:16,123 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b2fd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 05:16:16, skipping insertion in model container [2018-11-10 05:16:16,123 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 05:16:16,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:15" (2/3) ... [2018-11-10 05:16:16,124 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b2fd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 05:16:16, skipping insertion in model container [2018-11-10 05:16:16,124 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 05:16:16,124 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:16:16" (3/3) ... [2018-11-10 05:16:16,126 INFO L375 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_3_true-unreach-call_false-termination.i [2018-11-10 05:16:16,172 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:16:16,173 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 05:16:16,173 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 05:16:16,173 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 05:16:16,173 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:16:16,173 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:16:16,173 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 05:16:16,173 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:16:16,174 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 05:16:16,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-10 05:16:16,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-10 05:16:16,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:16:16,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:16:16,209 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 05:16:16,210 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-11-10 05:16:16,210 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 05:16:16,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-10 05:16:16,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-10 05:16:16,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:16:16,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:16:16,211 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 05:16:16,211 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-11-10 05:16:16,218 INFO L793 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~x~0 := 0; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res; 7#L24-3true [2018-11-10 05:16:16,218 INFO L795 eck$LassoCheckResult]: Loop: 7#L24-3true assume true; 12#L24-1true assume !false;assume { :begin_inline_eval } true; 17#L14loopEntrytrue assume !true; 10#L14-3true assume { :end_inline_eval } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if ~x~0 == 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 19#L4true assume !(__VERIFIER_assert_~cond == 0); 14#L4-2true assume { :end_inline___VERIFIER_assert } true; 7#L24-3true [2018-11-10 05:16:16,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:16:16,223 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 05:16:16,225 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:16:16,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:16:16,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:16:16,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:16:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:16:16,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:16:16,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1071102861, now seen corresponding path program 1 times [2018-11-10 05:16:16,292 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:16:16,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:16:16,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:16:16,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:16:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:16:16,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:16:16,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:16:16,316 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 05:16:16,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:16:16,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:16:16,327 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2018-11-10 05:16:16,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:16:16,331 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-11-10 05:16:16,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:16:16,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 10 transitions. [2018-11-10 05:16:16,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-10 05:16:16,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 9 transitions. [2018-11-10 05:16:16,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-10 05:16:16,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-10 05:16:16,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 9 transitions. [2018-11-10 05:16:16,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 05:16:16,338 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-11-10 05:16:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 9 transitions. [2018-11-10 05:16:16,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-10 05:16:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-10 05:16:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-10 05:16:16,356 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-11-10 05:16:16,356 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-11-10 05:16:16,356 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 05:16:16,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2018-11-10 05:16:16,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-10 05:16:16,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:16:16,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:16:16,357 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 05:16:16,357 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:16:16,357 INFO L793 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~x~0 := 0; 35#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res; 36#L24-3 [2018-11-10 05:16:16,357 INFO L795 eck$LassoCheckResult]: Loop: 36#L24-3 assume true; 37#L24-1 assume !false;assume { :begin_inline_eval } true; 41#L14loopEntry assume true; 43#L14-1 assume !false;~x~0 := 0; 39#L14-3 assume { :end_inline_eval } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if ~x~0 == 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 40#L4 assume !(__VERIFIER_assert_~cond == 0); 42#L4-2 assume { :end_inline___VERIFIER_assert } true; 36#L24-3 [2018-11-10 05:16:16,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:16:16,358 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-10 05:16:16,358 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:16:16,358 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:16:16,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:16:16,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:16:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:16:16,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:16:16,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1163093583, now seen corresponding path program 1 times [2018-11-10 05:16:16,362 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:16:16,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:16:16,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,363 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:16:16,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:16:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:16:16,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:16:16,374 INFO L82 PathProgramCache]: Analyzing trace with hash 383203247, now seen corresponding path program 1 times [2018-11-10 05:16:16,374 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:16:16,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:16:16,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:16:16,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:16:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:16:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:16:16,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 05:16:16 BoogieIcfgContainer [2018-11-10 05:16:16,450 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 05:16:16,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:16:16,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:16:16,451 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:16:16,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:16:16" (3/4) ... [2018-11-10 05:16:16,453 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-10 05:16:16,483 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_026c0d36-33e2-45a9-b12e-675414926db4/bin-2019/uautomizer/witness.graphml [2018-11-10 05:16:16,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:16:16,485 INFO L168 Benchmark]: Toolchain (without parser) took 717.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:16:16,487 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-11-10 05:16:16,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.49 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:16:16,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.77 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 947.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-11-10 05:16:16,488 INFO L168 Benchmark]: Boogie Preprocessor took 13.29 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 944.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:16:16,489 INFO L168 Benchmark]: RCFGBuilder took 183.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -207.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:16:16,489 INFO L168 Benchmark]: BuchiAutomizer took 332.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:16:16,490 INFO L168 Benchmark]: Witness Printer took 33.08 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: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:16:16,493 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 132.49 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.77 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 947.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.29 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 944.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 183.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -207.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 332.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * Witness Printer took 33.08 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: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 24]: 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 {cond=1, \result=0, \old(cond)=1, x=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 24]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L10] int x=0; Loop: [L24] COND TRUE 1 [L26] CALL eval() [L14] COND TRUE 1 [L15] RET x=0 [L26] eval() [L27] CALL __VERIFIER_assert(x==0) [L4] COND FALSE, RET !(!(cond)) [L27] __VERIFIER_assert(x==0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...