./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --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 b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:34:46,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:34:46,742 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-23 22:34:46,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:34:46,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:34:46,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:34:46,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:34:46,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:34:46,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:34:46,794 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:34:46,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:34:46,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:34:46,795 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:34:46,796 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 22:34:46,796 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 22:34:46,796 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 22:34:46,796 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 22:34:46,796 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 22:34:46,796 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 22:34:46,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 22:34:46,797 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:34:46,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:34:46,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:34:46,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:46,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:34:46,798 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-23 22:34:46,798 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 22:34:46,799 INFO L153 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_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b [2024-11-23 22:34:47,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:34:47,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:34:47,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:34:47,164 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:34:47,165 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:34:47,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2024-11-23 22:34:50,319 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/data/0a82e02ab/39cb33a50e504f889fb03229317233d7/FLAGac386c813 [2024-11-23 22:34:50,617 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:34:50,618 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2024-11-23 22:34:50,628 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/data/0a82e02ab/39cb33a50e504f889fb03229317233d7/FLAGac386c813 [2024-11-23 22:34:50,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/data/0a82e02ab/39cb33a50e504f889fb03229317233d7 [2024-11-23 22:34:50,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:34:50,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:34:50,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:50,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:34:50,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:34:50,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6233c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50, skipping insertion in model container [2024-11-23 22:34:50,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,691 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:34:50,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:50,859 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:34:50,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:50,888 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:34:50,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50 WrapperNode [2024-11-23 22:34:50,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:50,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:50,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:34:50,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:34:50,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,917 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 53 [2024-11-23 22:34:50,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:50,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:34:50,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:34:50,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:34:50,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,927 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,932 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 22:34:50,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,935 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:34:50,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:34:50,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:34:50,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:34:50,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:50,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:50,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:51,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 22:34:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:34:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:34:51,078 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:34:51,079 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:34:51,206 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-23 22:34:51,206 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:34:51,217 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:34:51,218 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:34:51,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:51 BoogieIcfgContainer [2024-11-23 22:34:51,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:34:51,219 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 22:34:51,219 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 22:34:51,225 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 22:34:51,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 22:34:51,226 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 10:34:50" (1/3) ... [2024-11-23 22:34:51,227 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d47e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:34:51, skipping insertion in model container [2024-11-23 22:34:51,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 22:34:51,227 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (2/3) ... [2024-11-23 22:34:51,228 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d47e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:34:51, skipping insertion in model container [2024-11-23 22:34:51,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 22:34:51,229 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:51" (3/3) ... [2024-11-23 22:34:51,230 INFO L363 chiAutomizerObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2024-11-23 22:34:51,287 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 22:34:51,287 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 22:34:51,287 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 22:34:51,287 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 22:34:51,288 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 22:34:51,288 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 22:34:51,289 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 22:34:51,289 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 22:34:51,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:51,309 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-11-23 22:34:51,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:51,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:51,315 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 22:34:51,316 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-23 22:34:51,316 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 22:34:51,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:51,318 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-11-23 22:34:51,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:51,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:51,320 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 22:34:51,320 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-23 22:34:51,327 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~LOCK~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_~got_lock~0#1, main_~old~0#1, main_~new~0#1;havoc main_~got_lock~0#1;main_~old~0#1 := 0;main_~new~0#1 := 0;havoc main_#t~nondet0#1;" "assume 0 != main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2024-11-23 22:34:51,327 INFO L749 eck$LassoCheckResult]: Loop: "main_~got_lock~0#1 := 0;havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" "assume !(0 != main_~got_lock~0#1);" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;" [2024-11-23 22:34:51,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:51,333 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-23 22:34:51,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:51,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260312128] [2024-11-23 22:34:51,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:51,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,432 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:51,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:51,461 INFO L85 PathProgramCache]: Analyzing trace with hash 37600280, now seen corresponding path program 1 times [2024-11-23 22:34:51,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:51,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885050241] [2024-11-23 22:34:51,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:51,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,471 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:51,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash 119669783, now seen corresponding path program 1 times [2024-11-23 22:34:51,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:51,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459505623] [2024-11-23 22:34:51,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,497 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,654 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 10:34:51 BoogieIcfgContainer [2024-11-23 22:34:51,696 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 22:34:51,697 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:34:51,697 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:34:51,698 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:34:51,698 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:51" (3/4) ... [2024-11-23 22:34:51,701 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-23 22:34:51,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 22:34:51,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:34:51,743 INFO L158 Benchmark]: Toolchain (without parser) took 1085.68ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 53.1MB in the end (delta: 40.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-23 22:34:51,743 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:51,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.24ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.7MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:34:51,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.77ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:51,745 INFO L158 Benchmark]: Boogie Preprocessor took 35.70ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:51,747 INFO L158 Benchmark]: RCFGBuilder took 264.03ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 70.7MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:34:51,747 INFO L158 Benchmark]: BuchiAutomizer took 477.50ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 55.0MB in the end (delta: 15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:34:51,748 INFO L158 Benchmark]: Witness Printer took 44.13ms. Allocated memory is still 117.4MB. Free memory was 55.0MB in the beginning and 53.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:34:51,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.24ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.7MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.77ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.70ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.03ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 70.7MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 477.50ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 55.0MB in the end (delta: 15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 44.13ms. Allocated memory is still 117.4MB. Free memory was 55.0MB in the beginning and 53.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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 0.3s. 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: 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 35]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L13] int LOCK; VAL [LOCK=0] [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. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 35]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int LOCK; VAL [LOCK=0] [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! [2024-11-23 22:34:51,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f981d4e3-e272-4315-8daa-2989da38ebca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)