./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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 0.1.23-635dfa2 [2018-12-02 13:37:14,878 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 13:37:14,878 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 13:37:14,884 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 13:37:14,885 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 13:37:14,885 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 13:37:14,886 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 13:37:14,887 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 13:37:14,888 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 13:37:14,888 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 13:37:14,889 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 13:37:14,889 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 13:37:14,889 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 13:37:14,890 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 13:37:14,890 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 13:37:14,891 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 13:37:14,891 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 13:37:14,892 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 13:37:14,893 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 13:37:14,894 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 13:37:14,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 13:37:14,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 13:37:14,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 13:37:14,896 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 13:37:14,896 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 13:37:14,897 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 13:37:14,897 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 13:37:14,898 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 13:37:14,898 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 13:37:14,899 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 13:37:14,899 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 13:37:14,900 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 13:37:14,900 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 13:37:14,900 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 13:37:14,900 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 13:37:14,901 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 13:37:14,901 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-02 13:37:14,909 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 13:37:14,910 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 13:37:14,910 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 13:37:14,910 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 13:37:14,911 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 13:37:14,911 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 13:37:14,911 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 13:37:14,911 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 13:37:14,911 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 13:37:14,911 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 13:37:14,911 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 13:37:14,912 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 13:37:14,912 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 13:37:14,912 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 13:37:14,912 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 13:37:14,912 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 13:37:14,912 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 13:37:14,912 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 13:37:14,913 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 13:37:14,913 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 13:37:14,913 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 13:37:14,913 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 13:37:14,913 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 13:37:14,913 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 13:37:14,913 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 13:37:14,913 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 13:37:14,914 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 13:37:14,914 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 13:37:14,914 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 13:37:14,914 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_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8654406b0017787fa4ace126fd130560d0ff458 [2018-12-02 13:37:14,932 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 13:37:14,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 13:37:14,943 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 13:37:14,944 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 13:37:14,945 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 13:37:14,945 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.c [2018-12-02 13:37:14,986 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/data/11cb6a3f4/e10e0bc9aa904beaaf12a1b3d72e2695/FLAG7efb1b70e [2018-12-02 13:37:15,379 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 13:37:15,379 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.c [2018-12-02 13:37:15,383 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/data/11cb6a3f4/e10e0bc9aa904beaaf12a1b3d72e2695/FLAG7efb1b70e [2018-12-02 13:37:15,390 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/data/11cb6a3f4/e10e0bc9aa904beaaf12a1b3d72e2695 [2018-12-02 13:37:15,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 13:37:15,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 13:37:15,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 13:37:15,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 13:37:15,395 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 13:37:15,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3163dfbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15, skipping insertion in model container [2018-12-02 13:37:15,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 13:37:15,410 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 13:37:15,499 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:37:15,501 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 13:37:15,510 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:37:15,518 INFO L195 MainTranslator]: Completed translation [2018-12-02 13:37:15,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15 WrapperNode [2018-12-02 13:37:15,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 13:37:15,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 13:37:15,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 13:37:15,519 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 13:37:15,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 13:37:15,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 13:37:15,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 13:37:15,545 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 13:37:15,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... [2018-12-02 13:37:15,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 13:37:15,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 13:37:15,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 13:37:15,557 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 13:37:15,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/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 [2018-12-02 13:37:15,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 13:37:15,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 13:37:15,710 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 13:37:15,710 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-02 13:37:15,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:15 BoogieIcfgContainer [2018-12-02 13:37:15,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 13:37:15,711 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 13:37:15,711 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 13:37:15,713 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 13:37:15,713 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 13:37:15,713 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 01:37:15" (1/3) ... [2018-12-02 13:37:15,714 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53186362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:37:15, skipping insertion in model container [2018-12-02 13:37:15,714 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 13:37:15,714 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:15" (2/3) ... [2018-12-02 13:37:15,715 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53186362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:37:15, skipping insertion in model container [2018-12-02 13:37:15,715 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 13:37:15,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:15" (3/3) ... [2018-12-02 13:37:15,716 INFO L375 chiAutomizerObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample_false-termination_true-no-overflow.c [2018-12-02 13:37:15,749 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 13:37:15,750 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 13:37:15,750 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 13:37:15,750 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 13:37:15,750 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 13:37:15,750 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 13:37:15,750 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 13:37:15,750 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 13:37:15,750 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 13:37:15,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-12-02 13:37:15,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2018-12-02 13:37:15,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:37:15,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:37:15,776 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-02 13:37:15,776 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-02 13:37:15,776 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 13:37:15,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-12-02 13:37:15,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2018-12-02 13:37:15,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:37:15,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:37:15,777 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-02 13:37:15,777 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-02 13:37:15,782 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue ~LOCK~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post3, main_#t~nondet1, main_#t~nondet4, main_#t~post5, main_~got_lock~0, main_~old~0, main_~new~0;havoc main_~got_lock~0;main_~old~0 := 0;main_~new~0 := 0; 17#L34true assume 0 != main_#t~nondet0;havoc main_#t~nondet0; 10#L35-3true [2018-12-02 13:37:15,782 INFO L796 eck$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 [2018-12-02 13:37:15,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:15,786 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-12-02 13:37:15,787 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:15,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:15,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:15,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:37:15,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:15,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:15,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1212883, now seen corresponding path program 1 times [2018-12-02 13:37:15,844 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:15,844 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:15,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:15,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:37:15,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:15,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:15,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1804975604, now seen corresponding path program 1 times [2018-12-02 13:37:15,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:15,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:15,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:15,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:37:15,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:15,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 01:37:15 BoogieIcfgContainer [2018-12-02 13:37:15,923 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 13:37:15,923 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 13:37:15,923 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 13:37:15,923 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 13:37:15,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:15" (3/4) ... [2018-12-02 13:37:15,925 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-02 13:37:15,950 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_300b736e-226c-4f6d-90c5-96bb93644a35/bin-2019/uautomizer/witness.graphml [2018-12-02 13:37:15,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 13:37:15,951 INFO L168 Benchmark]: Toolchain (without parser) took 558.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -92.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:15,953 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:37:15,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.14 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:15,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.25 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:37:15,955 INFO L168 Benchmark]: Boogie Preprocessor took 11.42 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:15,956 INFO L168 Benchmark]: RCFGBuilder took 153.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -130.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:15,956 INFO L168 Benchmark]: BuchiAutomizer took 212.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:15,957 INFO L168 Benchmark]: Witness Printer took 26.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:37:15,960 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.14 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 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 26.25 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.42 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 153.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -130.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 212.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Witness Printer took 26.71 ms. Allocated memory is still 1.1 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 0.1s 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: 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@409ad72d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30ae3e6b=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19311900=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c81eb7c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@750ff5f4=0, new=0, old=0, LOCK=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@237bd65b=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...