./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_2_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_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_2_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/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 38eaba8d64f477684f2f9d73b6277bf5294da706 .......................................................................................................................................................................................................................................................................... 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 07:08:09,424 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:08:09,425 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:08:09,432 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:08:09,432 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:08:09,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:08:09,434 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:08:09,435 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:08:09,436 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:08:09,437 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:08:09,437 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:08:09,437 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:08:09,438 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:08:09,439 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:08:09,439 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:08:09,440 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:08:09,441 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:08:09,442 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:08:09,443 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:08:09,444 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:08:09,445 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:08:09,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:08:09,447 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:08:09,447 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:08:09,448 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:08:09,448 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:08:09,449 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:08:09,449 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:08:09,450 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:08:09,451 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:08:09,451 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:08:09,451 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:08:09,451 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:08:09,451 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:08:09,452 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:08:09,453 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:08:09,453 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 07:08:09,463 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:08:09,464 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:08:09,465 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:08:09,465 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:08:09,465 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:08:09,465 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 07:08:09,465 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 07:08:09,465 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 07:08:09,466 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 07:08:09,466 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 07:08:09,466 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 07:08:09,466 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:08:09,466 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:08:09,466 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 07:08:09,466 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:08:09,467 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:08:09,467 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:08:09,467 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 07:08:09,467 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 07:08:09,467 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 07:08:09,467 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:08:09,468 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:08:09,468 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 07:08:09,468 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 07:08:09,468 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:08:09,468 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:08:09,468 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 07:08:09,469 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:08:09,469 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:08:09,469 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 07:08:09,470 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 07:08:09,470 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_33629b68-d3dd-4601-ba56-4462777d54a2/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 -> 38eaba8d64f477684f2f9d73b6277bf5294da706 [2018-11-10 07:08:09,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:08:09,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:08:09,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:08:09,502 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:08:09,502 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:08:09,503 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-10 07:08:09,537 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/data/d04d13e4c/e06721c5ed0a4c28bf9bf2f7ce3ea067/FLAG4c3b93d35 [2018-11-10 07:08:09,916 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:08:09,917 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/sv-benchmarks/c/loops/while_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-10 07:08:09,921 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/data/d04d13e4c/e06721c5ed0a4c28bf9bf2f7ce3ea067/FLAG4c3b93d35 [2018-11-10 07:08:09,930 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/data/d04d13e4c/e06721c5ed0a4c28bf9bf2f7ce3ea067 [2018-11-10 07:08:09,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:08:09,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:08:09,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:08:09,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:08:09,937 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:08:09,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:08:09" (1/1) ... [2018-11-10 07:08:09,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32089edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:09, skipping insertion in model container [2018-11-10 07:08:09,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:08:09" (1/1) ... [2018-11-10 07:08:09,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:08:09,956 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:08:10,043 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:08:10,046 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:08:10,053 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:08:10,061 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:08:10,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10 WrapperNode [2018-11-10 07:08:10,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:08:10,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:08:10,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:08:10,062 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:08:10,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... [2018-11-10 07:08:10,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... [2018-11-10 07:08:10,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:08:10,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:08:10,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:08:10,082 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:08:10,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... [2018-11-10 07:08:10,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... [2018-11-10 07:08:10,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... [2018-11-10 07:08:10,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... [2018-11-10 07:08:10,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... [2018-11-10 07:08:10,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... [2018-11-10 07:08:10,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... [2018-11-10 07:08:10,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:08:10,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:08:10,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:08:10,095 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:08:10,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/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 07:08:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:08:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:08:10,284 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:08:10,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:08:10 BoogieIcfgContainer [2018-11-10 07:08:10,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:08:10,285 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 07:08:10,286 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 07:08:10,288 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 07:08:10,288 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 07:08:10,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 07:08:09" (1/3) ... [2018-11-10 07:08:10,289 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f2ccb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 07:08:10, skipping insertion in model container [2018-11-10 07:08:10,289 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 07:08:10,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:10" (2/3) ... [2018-11-10 07:08:10,290 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f2ccb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 07:08:10, skipping insertion in model container [2018-11-10 07:08:10,290 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 07:08:10,290 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:08:10" (3/3) ... [2018-11-10 07:08:10,291 INFO L375 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-10 07:08:10,339 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:08:10,340 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 07:08:10,340 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 07:08:10,340 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 07:08:10,340 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:08:10,340 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:08:10,340 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 07:08:10,340 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:08:10,340 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 07:08:10,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-10 07:08:10,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 07:08:10,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 07:08:10,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 07:08:10,376 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 07:08:10,376 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 07:08:10,377 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 07:08:10,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-10 07:08:10,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 07:08:10,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 07:08:10,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 07:08:10,378 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 07:08:10,379 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 07:08:10,385 INFO L793 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~x~0;main_~x~0 := 0; 5#L12-3true [2018-11-10 07:08:10,386 INFO L795 eck$LassoCheckResult]: Loop: 5#L12-3true assume true; 10#L12-1true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if main_~x~0 == 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 15#L4true assume !(__VERIFIER_assert_~cond == 0); 13#L4-2true assume { :end_inline___VERIFIER_assert } true; 5#L12-3true [2018-11-10 07:08:10,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:10,391 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 07:08:10,393 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:10,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:10,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:10,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:10,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:10,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:10,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1114410, now seen corresponding path program 1 times [2018-11-10 07:08:10,459 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:10,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:10,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:10,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:10,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:10,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:10,470 INFO L82 PathProgramCache]: Analyzing trace with hash 889541612, now seen corresponding path program 1 times [2018-11-10 07:08:10,471 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:10,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:10,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:10,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:10,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:10,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 07:08:10 BoogieIcfgContainer [2018-11-10 07:08:10,532 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 07:08:10,532 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:08:10,532 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:08:10,532 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:08:10,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:08:10" (3/4) ... [2018-11-10 07:08:10,535 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-10 07:08:10,560 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_33629b68-d3dd-4601-ba56-4462777d54a2/bin-2019/uautomizer/witness.graphml [2018-11-10 07:08:10,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:08:10,561 INFO L168 Benchmark]: Toolchain (without parser) took 627.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:08:10,562 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. [2018-11-10 07:08:10,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.76 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:10,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.25 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:08:10,563 INFO L168 Benchmark]: Boogie Preprocessor took 12.05 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 940.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:10,564 INFO L168 Benchmark]: RCFGBuilder took 190.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:10,564 INFO L168 Benchmark]: BuchiAutomizer took 246.44 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: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:10,565 INFO L168 Benchmark]: Witness Printer took 28.03 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. [2018-11-10 07:08:10,568 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 126.76 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.25 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.05 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 940.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 190.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 246.44 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: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Witness Printer took 28.03 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 0.1s. 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: 12]: 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: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L10] int x=0; Loop: [L12] COND TRUE 1 [L14] CALL __VERIFIER_assert(x==0) [L4] COND FALSE, RET !(!(cond)) [L14] __VERIFIER_assert(x==0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...