./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/WhileFalse.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_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/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_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/WhileFalse.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/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_577bb780-1355-445b-8d88-218fa8a10063/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 6bafde5168b708b72da7f2587edb5230d20fcc9c2ad1a62f6bbb27f7dfec2f68 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:57:22,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:57:22,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-24 00:57:22,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:57:22,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:57:22,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:57:22,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:57:22,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:57:22,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:57:22,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:57:22,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:57:22,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:57:22,588 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:57:22,589 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-24 00:57:22,589 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-24 00:57:22,589 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-24 00:57:22,589 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-24 00:57:22,589 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-24 00:57:22,589 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-24 00:57:22,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:57:22,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-24 00:57:22,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:57:22,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:57:22,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-24 00:57:22,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-24 00:57:22,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-24 00:57:22,591 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:57:22,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:57:22,591 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-24 00:57:22,591 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:57:22,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:57:22,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:57:22,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:57:22,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:57:22,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-24 00:57:22,592 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-24 00:57:22,593 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_577bb780-1355-445b-8d88-218fa8a10063/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 -> 6bafde5168b708b72da7f2587edb5230d20fcc9c2ad1a62f6bbb27f7dfec2f68 [2024-11-24 00:57:22,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:57:22,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:57:22,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:57:22,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:57:22,912 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:57:22,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-crafted/WhileFalse.c [2024-11-24 00:57:26,034 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/data/c26d73899/4aebe6212ee448d3b22977ad5a046fa5/FLAG472e57509 [2024-11-24 00:57:26,365 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:57:26,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/sv-benchmarks/c/termination-crafted/WhileFalse.c [2024-11-24 00:57:26,386 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/data/c26d73899/4aebe6212ee448d3b22977ad5a046fa5/FLAG472e57509 [2024-11-24 00:57:26,429 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/data/c26d73899/4aebe6212ee448d3b22977ad5a046fa5 [2024-11-24 00:57:26,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:57:26,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:57:26,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:57:26,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:57:26,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:57:26,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586023ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26, skipping insertion in model container [2024-11-24 00:57:26,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,463 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:57:26,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:57:26,635 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:57:26,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:57:26,663 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:57:26,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26 WrapperNode [2024-11-24 00:57:26,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:57:26,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:57:26,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:57:26,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:57:26,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,700 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7 [2024-11-24 00:57:26,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:57:26,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:57:26,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:57:26,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:57:26,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,720 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-24 00:57:26,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,723 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:57:26,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:57:26,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:57:26,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:57:26,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (1/1) ... [2024-11-24 00:57:26,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 00:57:26,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:57:26,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 00:57:26,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-24 00:57:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:57:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:57:26,897 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:57:26,899 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:57:26,935 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-11-24 00:57:26,935 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:57:26,945 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:57:26,947 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:57:26,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:57:26 BoogieIcfgContainer [2024-11-24 00:57:26,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:57:26,948 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-24 00:57:26,949 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-24 00:57:26,957 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-24 00:57:26,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 00:57:26,958 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.11 12:57:26" (1/3) ... [2024-11-24 00:57:26,960 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50c188a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 12:57:26, skipping insertion in model container [2024-11-24 00:57:26,960 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 00:57:26,960 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:26" (2/3) ... [2024-11-24 00:57:26,961 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50c188a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 12:57:26, skipping insertion in model container [2024-11-24 00:57:26,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 00:57:26,962 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:57:26" (3/3) ... [2024-11-24 00:57:26,963 INFO L363 chiAutomizerObserver]: Analyzing ICFG WhileFalse.c [2024-11-24 00:57:27,041 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-24 00:57:27,041 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-24 00:57:27,041 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-24 00:57:27,041 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-24 00:57:27,042 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-24 00:57:27,042 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-24 00:57:27,042 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-24 00:57:27,042 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-24 00:57:27,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-24 00:57:27,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-24 00:57:27,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 00:57:27,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 00:57:27,070 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-24 00:57:27,071 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-24 00:57:27,071 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-24 00:57:27,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-24 00:57:27,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-24 00:57:27,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 00:57:27,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 00:57:27,074 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-24 00:57:27,074 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-24 00:57:27,083 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;" [2024-11-24 00:57:27,083 INFO L749 eck$LassoCheckResult]: Loop: "assume false;" [2024-11-24 00:57:27,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:27,090 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-24 00:57:27,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:57:27,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058464463] [2024-11-24 00:57:27,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:27,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:57:27,170 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:57:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:57:27,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:57:27,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:27,192 INFO L85 PathProgramCache]: Analyzing trace with hash 39, now seen corresponding path program 1 times [2024-11-24 00:57:27,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:57:27,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993073678] [2024-11-24 00:57:27,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:27,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:27,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 00:57:27,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993073678] [2024-11-24 00:57:27,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993073678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:57:27,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062933408] [2024-11-24 00:57:27,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:27,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:57:27,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:57:27,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:57:27,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:57:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:27,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:57:27,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:57:27,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:57:27,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062933408] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:57:27,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:57:27,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [0, 0, 0] total 0 [2024-11-24 00:57:27,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345733970] [2024-11-24 00:57:27,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:57:27,284 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-24 00:57:27,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 00:57:27,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:57:27,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:57:27,328 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2024-11-24 00:57:27,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:27,334 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2024-11-24 00:57:27,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 6 transitions. [2024-11-24 00:57:27,336 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-24 00:57:27,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2024-11-24 00:57:27,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-24 00:57:27,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-24 00:57:27,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-24 00:57:27,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-24 00:57:27,348 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:57:27,348 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:57:27,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:57:27,357 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:57:27,357 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-24 00:57:27,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:57:27,358 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-24 00:57:27,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-24 00:57:27,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 24.11 12:57:27 BoogieIcfgContainer [2024-11-24 00:57:27,370 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-24 00:57:27,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:57:27,371 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:57:27,372 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:57:27,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:57:26" (3/4) ... [2024-11-24 00:57:27,379 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:57:27,380 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:57:27,383 INFO L158 Benchmark]: Toolchain (without parser) took 947.82ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 51.4MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-24 00:57:27,383 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:57:27,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.40ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 76.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:57:27,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.14ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 75.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:57:27,386 INFO L158 Benchmark]: Boogie Preprocessor took 30.46ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 74.4MB in the end (delta: 723.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:57:27,387 INFO L158 Benchmark]: RCFGBuilder took 213.73ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 66.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:57:27,389 INFO L158 Benchmark]: BuchiAutomizer took 421.13ms. Allocated memory is still 117.4MB. Free memory was 66.4MB in the beginning and 51.7MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:57:27,390 INFO L158 Benchmark]: Witness Printer took 9.17ms. Allocated memory is still 117.4MB. Free memory was 51.7MB in the beginning and 51.4MB in the end (delta: 335.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:57:27,392 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.40ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 76.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.14ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 75.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.46ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 74.4MB in the end (delta: 723.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 213.73ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 66.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 421.13ms. Allocated memory is still 117.4MB. Free memory was 66.4MB in the beginning and 51.7MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 9.17ms. Allocated memory is still 117.4MB. Free memory was 51.7MB in the beginning and 51.4MB in the end (delta: 335.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 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 1. 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: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 6 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 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: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-24 00:57:27,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:57:27,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_577bb780-1355-445b-8d88-218fa8a10063/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 Result: TRUE