./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: 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 /storage/repos/svcomp/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.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 d8654406b0017787fa4ace126fd130560d0ff458 ................................................................................................................................................................................................................................................................ 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 0.1.24-0ed9222-m [2019-01-14 02:15:48,844 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:15:48,847 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:15:48,861 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:15:48,862 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:15:48,863 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:15:48,865 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:15:48,867 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:15:48,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:15:48,870 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:15:48,871 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:15:48,872 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:15:48,873 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:15:48,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:15:48,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:15:48,877 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:15:48,878 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:15:48,881 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:15:48,884 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:15:48,885 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:15:48,887 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:15:48,889 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:15:48,893 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:15:48,893 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:15:48,893 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:15:48,894 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:15:48,897 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:15:48,898 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:15:48,899 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:15:48,900 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:15:48,900 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:15:48,902 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:15:48,902 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:15:48,902 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:15:48,904 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:15:48,905 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:15:48,905 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:15:48,925 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:15:48,926 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:15:48,927 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:15:48,928 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:15:48,928 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:15:48,928 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:15:48,929 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:15:48,929 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:15:48,929 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:15:48,929 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:15:48,929 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:15:48,929 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:15:48,930 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:15:48,930 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:15:48,930 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:15:48,930 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:15:48,930 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:15:48,931 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:15:48,933 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:15:48,933 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:15:48,933 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:15:48,933 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:15:48,933 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:15:48,934 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:15:48,934 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:15:48,935 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:15:48,935 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:15:48,935 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:15:48,936 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:15:48,936 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 -> /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 -> d8654406b0017787fa4ace126fd130560d0ff458 [2019-01-14 02:15:48,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:15:49,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:15:49,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:15:49,015 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:15:49,015 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:15:49,016 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.c [2019-01-14 02:15:49,092 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41174f8f/a0445296548e4ccd894fa632b55497a3/FLAGa7518e608 [2019-01-14 02:15:49,591 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:15:49,592 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.c [2019-01-14 02:15:49,601 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41174f8f/a0445296548e4ccd894fa632b55497a3/FLAGa7518e608 [2019-01-14 02:15:49,937 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41174f8f/a0445296548e4ccd894fa632b55497a3 [2019-01-14 02:15:49,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:15:49,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:15:49,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:15:49,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:15:49,951 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:15:49,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:15:49" (1/1) ... [2019-01-14 02:15:49,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436a47b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:49, skipping insertion in model container [2019-01-14 02:15:49,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:15:49" (1/1) ... [2019-01-14 02:15:49,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:15:49,993 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:15:50,264 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:15:50,275 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:15:50,303 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:15:50,331 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:15:50,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50 WrapperNode [2019-01-14 02:15:50,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:15:50,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:15:50,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:15:50,334 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:15:50,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (1/1) ... [2019-01-14 02:15:50,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (1/1) ... [2019-01-14 02:15:50,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:15:50,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:15:50,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:15:50,393 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:15:50,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (1/1) ... [2019-01-14 02:15:50,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (1/1) ... [2019-01-14 02:15:50,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (1/1) ... [2019-01-14 02:15:50,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (1/1) ... [2019-01-14 02:15:50,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (1/1) ... [2019-01-14 02:15:50,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (1/1) ... [2019-01-14 02:15:50,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (1/1) ... [2019-01-14 02:15:50,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:15:50,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:15:50,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:15:50,438 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:15:50,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (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 [2019-01-14 02:15:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:15:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:15:51,180 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:15:51,181 INFO L286 CfgBuilder]: Removed 16 assue(true) statements. [2019-01-14 02:15:51,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:15:51 BoogieIcfgContainer [2019-01-14 02:15:51,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:15:51,183 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:15:51,183 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:15:51,187 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:15:51,189 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:15:51,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:15:49" (1/3) ... [2019-01-14 02:15:51,190 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60a2b42d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:15:51, skipping insertion in model container [2019-01-14 02:15:51,191 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:15:51,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:50" (2/3) ... [2019-01-14 02:15:51,191 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60a2b42d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:15:51, skipping insertion in model container [2019-01-14 02:15:51,191 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:15:51,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:15:51" (3/3) ... [2019-01-14 02:15:51,193 INFO L375 chiAutomizerObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.c [2019-01-14 02:15:51,270 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:15:51,271 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:15:51,271 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:15:51,271 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:15:51,272 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:15:51,272 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:15:51,272 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:15:51,272 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:15:51,273 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:15:51,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-01-14 02:15:51,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2019-01-14 02:15:51,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:15:51,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:15:51,330 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-14 02:15:51,330 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-14 02:15:51,330 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:15:51,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-01-14 02:15:51,333 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2019-01-14 02:15:51,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:15:51,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:15:51,334 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-14 02:15:51,334 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-14 02:15:51,343 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue ~LOCK~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post3, main_#t~nondet1, main_#t~nondet4, main_#t~post5, main_~got_lock~0, main_~old~0, main_~new~0;havoc main_~got_lock~0;main_~old~0 := 0;main_~new~0 := 0; 17#L34true assume 0 != main_#t~nondet0;havoc main_#t~nondet0; 10#L35-3true [2019-01-14 02:15:51,344 INFO L796 eck$LassoCheckResult]: Loop: 10#L35-3true main_~got_lock~0 := 0; 4#L37true assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 20#L37-2true assume !(0 != main_~got_lock~0); 18#L35-1true assume !!(0 != main_#t~nondet1);havoc main_#t~nondet1; 10#L35-3true [2019-01-14 02:15:51,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:15:51,353 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2019-01-14 02:15:51,355 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:15:51,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:15:51,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:51,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:15:51,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:15:51,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1212883, now seen corresponding path program 1 times [2019-01-14 02:15:51,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:15:51,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:15:51,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:51,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:15:51,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:51,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:15:51,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1804975604, now seen corresponding path program 1 times [2019-01-14 02:15:51,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:15:51,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:15:51,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:51,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:15:51,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:51,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:15:51 BoogieIcfgContainer [2019-01-14 02:15:51,637 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:15:51,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:15:51,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:15:51,638 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:15:51,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:15:51" (3/4) ... [2019-01-14 02:15:51,645 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 02:15:51,699 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 02:15:51,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:15:51,700 INFO L168 Benchmark]: Toolchain (without parser) took 1758.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -126.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:15:51,704 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:15:51,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.99 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:15:51,706 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.17 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:15:51,707 INFO L168 Benchmark]: Boogie Preprocessor took 44.34 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:15:51,707 INFO L168 Benchmark]: RCFGBuilder took 745.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 02:15:51,708 INFO L168 Benchmark]: BuchiAutomizer took 454.46 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:15:51,710 INFO L168 Benchmark]: Witness Printer took 61.28 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. [2019-01-14 02:15:51,715 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.99 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 58.17 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.34 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 745.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 454.46 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Witness Printer took 61.28 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 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 35]: 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 {got_lock=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48c955d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ace286=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4422f2b0=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1975e675=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6d45f337=0, new=0, old=0, LOCK=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@45e55755=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 35]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int LOCK; [L32] int got_lock; [L33] int old = 0, new = 0; [L34] COND TRUE __VERIFIER_nondet_int() Loop: [L36] got_lock = 0 [L37] COND FALSE !(__VERIFIER_nondet_int()) [L41] COND FALSE !(\read(got_lock)) [L44] COND TRUE __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...