./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Loop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Loop-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd --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 42637c171db16e9b30ddb9b81ced3fc8afebc727d3cebc25aef685f9a2d7301b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:47:59,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:47:59,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 13:47:59,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:47:59,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:47:59,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:47:59,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:47:59,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:47:59,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:47:59,698 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:47:59,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:47:59,699 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:47:59,699 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:47:59,699 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 13:47:59,699 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 13:47:59,699 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 13:47:59,700 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 13:47:59,700 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 13:47:59,701 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 13:47:59,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:47:59,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 13:47:59,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:47:59,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:47:59,702 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 13:47:59,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 13:47:59,702 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 13:47:59,702 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:47:59,702 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:47:59,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:47:59,702 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 13:47:59,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:47:59,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:47:59,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:47:59,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:47:59,703 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:47:59,703 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 13:47:59,704 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_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd 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 -> 42637c171db16e9b30ddb9b81ced3fc8afebc727d3cebc25aef685f9a2d7301b [2024-11-13 13:48:00,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:48:00,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:48:00,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:48:00,056 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:48:00,056 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:48:00,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-restricted-15/Loop-2.c Unable to find full path for "g++" [2024-11-13 13:48:01,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:48:02,246 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:48:02,249 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/sv-benchmarks/c/termination-restricted-15/Loop-2.c [2024-11-13 13:48:02,261 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/data/7f9c469ee/3113d01319a94ea38da2f494f522e51d/FLAG6d8906817 [2024-11-13 13:48:02,286 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/data/7f9c469ee/3113d01319a94ea38da2f494f522e51d [2024-11-13 13:48:02,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:48:02,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:48:02,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:48:02,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:48:02,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:48:02,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3e7176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02, skipping insertion in model container [2024-11-13 13:48:02,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,317 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:48:02,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:48:02,478 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:48:02,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:48:02,503 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:48:02,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02 WrapperNode [2024-11-13 13:48:02,503 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:48:02,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:48:02,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:48:02,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:48:02,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,532 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2024-11-13 13:48:02,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:48:02,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:48:02,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:48:02,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:48:02,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,547 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 13:48:02,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:48:02,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:48:02,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:48:02,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:48:02,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (1/1) ... [2024-11-13 13:48:02,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:48:02,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:02,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:48:02,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 13:48:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:48:02,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:48:02,700 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:48:02,702 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:48:02,756 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-13 13:48:02,756 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:48:02,767 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:48:02,768 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:48:02,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:48:02 BoogieIcfgContainer [2024-11-13 13:48:02,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:48:02,769 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 13:48:02,769 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 13:48:02,777 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 13:48:02,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:48:02,779 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 01:48:02" (1/3) ... [2024-11-13 13:48:02,780 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@372d3bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:48:02, skipping insertion in model container [2024-11-13 13:48:02,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:48:02,780 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:48:02" (2/3) ... [2024-11-13 13:48:02,781 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@372d3bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:48:02, skipping insertion in model container [2024-11-13 13:48:02,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:48:02,781 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:48:02" (3/3) ... [2024-11-13 13:48:02,783 INFO L333 chiAutomizerObserver]: Analyzing ICFG Loop-2.c [2024-11-13 13:48:02,845 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 13:48:02,845 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 13:48:02,845 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 13:48:02,845 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 13:48:02,845 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 13:48:02,846 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 13:48:02,846 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 13:48:02,846 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 13:48:02,851 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) [2024-11-13 13:48:02,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 13:48:02,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:48:02,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:48:02,873 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 13:48:02,873 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 13:48:02,873 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 13:48:02,874 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) [2024-11-13 13:48:02,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 13:48:02,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:48:02,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:48:02,876 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 13:48:02,876 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 13:48:02,883 INFO L745 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~a~0#1, main_~b~0#1, main_~i~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~i~0#1;main_~a~0#1 := 5;main_~b~0#1 := 3;main_~i~0#1 := 0; 4#L13-2true [2024-11-13 13:48:02,884 INFO L747 eck$LassoCheckResult]: Loop: 4#L13-2true assume !!(main_~i~0#1 < 10);main_~i~0#1 := main_~i~0#1; 4#L13-2true [2024-11-13 13:48:02,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:02,892 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 13:48:02,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:02,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141497885] [2024-11-13 13:48:02,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:02,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:48:02,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:48:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:48:03,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:48:03,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:03,012 INFO L85 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2024-11-13 13:48:03,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:03,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336655736] [2024-11-13 13:48:03,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:03,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:48:03,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:48:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:48:03,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:48:03,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:03,034 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-11-13 13:48:03,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:48:03,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020838032] [2024-11-13 13:48:03,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:03,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:48:03,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:48:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:48:03,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:48:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:48:03,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:48:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:48:03,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 01:48:03 BoogieIcfgContainer [2024-11-13 13:48:03,192 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 13:48:03,192 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:48:03,192 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:48:03,193 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:48:03,194 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:48:02" (3/4) ... [2024-11-13 13:48:03,197 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 13:48:03,237 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:48:03,239 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:48:03,241 INFO L158 Benchmark]: Toolchain (without parser) took 950.45ms. Allocated memory is still 117.4MB. Free memory was 94.5MB in the beginning and 58.3MB in the end (delta: 36.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 13:48:03,242 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:48:03,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.93ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 84.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:48:03,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.97ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:48:03,243 INFO L158 Benchmark]: Boogie Preprocessor took 23.72ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.7MB in the end (delta: 758.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:48:03,244 INFO L158 Benchmark]: RCFGBuilder took 211.13ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 74.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:48:03,244 INFO L158 Benchmark]: BuchiAutomizer took 422.53ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 60.1MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:48:03,245 INFO L158 Benchmark]: Witness Printer took 47.54ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 58.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:48:03,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.93ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 84.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.97ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.72ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.7MB in the end (delta: 758.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 211.13ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 74.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 422.53ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 60.1MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 47.54ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 58.3MB in the end (delta: 1.8MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 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: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 VAL [i=0] Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 VAL [i=0] Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 13:48:03,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dcc955-c6bc-401c-bc2d-b625b8cd9bb4/bin/uautomizer-verify-qhAvR1uOyd/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)