./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/WhileTrue.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/WhileTrue.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 b58543c5c6c478461bb3678f5712726562def78f ............................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-11-28 20:29:33,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:29:33,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:29:33,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:29:33,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:29:33,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:29:33,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:29:33,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:29:33,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:29:33,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:29:33,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:29:33,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:29:33,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:29:33,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:29:33,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:29:33,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:29:33,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:29:33,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:29:33,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:29:33,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:29:33,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:29:33,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:29:33,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:29:33,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:29:33,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:29:33,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:29:33,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:29:33,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:29:33,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:29:33,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:29:33,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:29:33,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:29:33,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:29:33,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:29:33,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:29:33,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:29:33,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:29:33,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:29:33,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:29:33,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:29:33,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:29:33,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:29:33,346 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:29:33,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:29:33,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:29:33,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:29:33,348 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:29:33,348 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:29:33,349 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:29:33,349 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:29:33,349 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:29:33,349 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:29:33,350 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:29:33,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:29:33,350 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:29:33,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:29:33,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:29:33,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:29:33,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:29:33,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:29:33,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:29:33,351 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:29:33,352 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:29:33,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:29:33,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:29:33,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:29:33,353 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:29:33,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:29:33,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:29:33,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:29:33,353 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:29:33,354 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:29:33,355 INFO L138 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> b58543c5c6c478461bb3678f5712726562def78f [2019-11-28 20:29:33,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:29:33,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:29:33,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:29:33,710 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:29:33,711 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:29:33,712 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/WhileTrue.c [2019-11-28 20:29:33,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c30c4f5d7/346e0a3f210b4704beedd8ebf5dda7c1/FLAG9334ab343 [2019-11-28 20:29:34,246 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:29:34,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/WhileTrue.c [2019-11-28 20:29:34,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c30c4f5d7/346e0a3f210b4704beedd8ebf5dda7c1/FLAG9334ab343 [2019-11-28 20:29:34,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c30c4f5d7/346e0a3f210b4704beedd8ebf5dda7c1 [2019-11-28 20:29:34,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:29:34,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:29:34,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:29:34,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:29:34,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:29:34,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:29:34" (1/1) ... [2019-11-28 20:29:34,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197304c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:34, skipping insertion in model container [2019-11-28 20:29:34,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:29:34" (1/1) ... [2019-11-28 20:29:34,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:29:34,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:29:34,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:29:34,973 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:29:34,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:29:35,013 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:29:35,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35 WrapperNode [2019-11-28 20:29:35,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:29:35,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:29:35,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:29:35,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:29:35,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... [2019-11-28 20:29:35,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... [2019-11-28 20:29:35,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:29:35,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:29:35,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:29:35,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:29:35,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... [2019-11-28 20:29:35,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... [2019-11-28 20:29:35,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... [2019-11-28 20:29:35,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... [2019-11-28 20:29:35,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... [2019-11-28 20:29:35,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... [2019-11-28 20:29:35,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... [2019-11-28 20:29:35,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:29:35,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:29:35,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:29:35,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:29:35,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:29:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:29:35,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:29:35,362 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:29:35,362 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:29:35,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:29:35 BoogieIcfgContainer [2019-11-28 20:29:35,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:29:35,365 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:29:35,365 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:29:35,368 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:29:35,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:29:35,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:29:34" (1/3) ... [2019-11-28 20:29:35,370 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@772da5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:29:35, skipping insertion in model container [2019-11-28 20:29:35,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:29:35,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:29:35" (2/3) ... [2019-11-28 20:29:35,371 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@772da5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:29:35, skipping insertion in model container [2019-11-28 20:29:35,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:29:35,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:29:35" (3/3) ... [2019-11-28 20:29:35,373 INFO L371 chiAutomizerObserver]: Analyzing ICFG WhileTrue.c [2019-11-28 20:29:35,444 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:29:35,444 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:29:35,444 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:29:35,444 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:29:35,444 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:29:35,444 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:29:35,445 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:29:35,445 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:29:35,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-28 20:29:35,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:29:35,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:29:35,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:29:35,484 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:29:35,485 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:29:35,485 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:29:35,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-28 20:29:35,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:29:35,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:29:35,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:29:35,486 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:29:35,487 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:29:35,494 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res; 6#L13-2true [2019-11-28 20:29:35,495 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(0 != ~unnamed0~0~true); 6#L13-2true [2019-11-28 20:29:35,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:29:35,502 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 20:29:35,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:29:35,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167492805] [2019-11-28 20:29:35,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:29:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:29:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:29:35,599 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:29:35,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:29:35,601 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-28 20:29:35,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:29:35,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698349379] [2019-11-28 20:29:35,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:29:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:29:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:29:35,608 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:29:35,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:29:35,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-28 20:29:35,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:29:35,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948308695] [2019-11-28 20:29:35,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:29:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:29:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:29:35,619 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:29:35,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:29:35 BoogieIcfgContainer [2019-11-28 20:29:35,706 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:29:35,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:29:35,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:29:35,709 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:29:35,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:29:35" (3/4) ... [2019-11-28 20:29:35,713 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:29:35,795 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:29:35,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:29:35,798 INFO L168 Benchmark]: Toolchain (without parser) took 1112.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:29:35,800 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:29:35,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.08 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:29:35,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.03 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:29:35,802 INFO L168 Benchmark]: Boogie Preprocessor took 116.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:29:35,805 INFO L168 Benchmark]: RCFGBuilder took 191.75 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:29:35,807 INFO L168 Benchmark]: BuchiAutomizer took 341.98 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:29:35,807 INFO L168 Benchmark]: Witness Printer took 87.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:29:35,816 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.08 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 39.03 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 116.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.75 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 341.98 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 87.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program 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: 13]: 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 {\result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: Loop: [L13] COND TRUE \read(true) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...