./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/bh2017-ex-add.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/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_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/bh2017-ex-add.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/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 32bit --witnessprinter.graph.data.programhash 9067bcd66b4865bfb6aa4fb5c23797c879c2b81c36d918479d6650dc5a4b5edc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:23:37,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:23:37,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-13 15:23:37,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:23:37,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:23:37,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:23:37,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:23:37,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:23:37,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:23:37,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:23:37,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:23:37,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:23:37,309 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:23:37,309 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:23:37,310 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:23:37,310 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:23:37,310 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:23:37,310 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:23:37,311 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:23:37,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:23:37,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:23:37,311 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:23:37,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:23:37,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:23:37,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:23:37,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:23:37,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:23:37,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:23:37,312 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:23:37,312 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:23:37,312 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:23:37,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:23:37,313 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:23:37,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:23:37,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:23:37,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:23:37,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:23:37,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:23:37,315 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:23:37,315 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_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9067bcd66b4865bfb6aa4fb5c23797c879c2b81c36d918479d6650dc5a4b5edc [2024-11-13 15:23:37,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:23:37,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:23:37,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:23:37,736 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:23:37,736 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:23:37,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loop-lit/bh2017-ex-add.i Unable to find full path for "g++" [2024-11-13 15:23:40,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:23:40,591 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:23:40,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/sv-benchmarks/c/loop-lit/bh2017-ex-add.i [2024-11-13 15:23:40,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/data/fd017bf1c/b465f0d808424545a5c93fdf5f7ffbda/FLAG916d9be26 [2024-11-13 15:23:40,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/data/fd017bf1c/b465f0d808424545a5c93fdf5f7ffbda [2024-11-13 15:23:40,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:23:40,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:23:40,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:23:40,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:23:40,810 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:23:40,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:23:40" (1/1) ... [2024-11-13 15:23:40,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b043709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:40, skipping insertion in model container [2024-11-13 15:23:40,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:23:40" (1/1) ... [2024-11-13 15:23:40,836 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:23:41,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:23:41,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:23:41,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:23:41,135 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:23:41,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41 WrapperNode [2024-11-13 15:23:41,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:23:41,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:23:41,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:23:41,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:23:41,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,182 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 77 [2024-11-13 15:23:41,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:23:41,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:23:41,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:23:41,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:23:41,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,223 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:23:41,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,248 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:23:41,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:23:41,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:23:41,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:23:41,255 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (1/1) ... [2024-11-13 15:23:41,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:23:41,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:23:41,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:23:41,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:23:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:23:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:23:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:23:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:23:41,441 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:23:41,443 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:23:41,631 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-13 15:23:41,631 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:23:41,641 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:23:41,641 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:23:41,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:23:41 BoogieIcfgContainer [2024-11-13 15:23:41,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:23:41,642 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:23:41,642 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:23:41,647 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:23:41,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:23:41,648 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:23:40" (1/3) ... [2024-11-13 15:23:41,649 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a7b50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:23:41, skipping insertion in model container [2024-11-13 15:23:41,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:23:41,650 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:23:41" (2/3) ... [2024-11-13 15:23:41,650 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a7b50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:23:41, skipping insertion in model container [2024-11-13 15:23:41,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:23:41,650 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:23:41" (3/3) ... [2024-11-13 15:23:41,651 INFO L333 chiAutomizerObserver]: Analyzing ICFG bh2017-ex-add.i [2024-11-13 15:23:41,707 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:23:41,707 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:23:41,707 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:23:41,707 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:23:41,708 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:23:41,708 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:23:41,708 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:23:41,708 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:23:41,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 34 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 33 states have internal predecessors, (49), 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 15:23:41,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2024-11-13 15:23:41,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:23:41,738 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:23:41,746 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:23:41,747 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:23:41,747 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:23:41,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 34 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 33 states have internal predecessors, (49), 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 15:23:41,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2024-11-13 15:23:41,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:23:41,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:23:41,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:23:41,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:23:41,764 INFO L745 eck$LassoCheckResult]: Stem: 33#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_~m~0#1, main_~n~0#1;main_~m~0#1 := 0;main_~n~0#1 := 0; 4#L32-1true [2024-11-13 15:23:41,765 INFO L747 eck$LassoCheckResult]: Loop: 4#L32-1true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~m~0#1 <= 60 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 13#L13true assume !(0 == __VERIFIER_assert_~cond#1); 6#L13-3true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~n~0#1 <= 60 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 34#L13-4true assume !(0 == __VERIFIER_assert_~cond#1); 10#L13-7true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1; 31#L21true assume !(0 != main_#t~nondet1#1 % 256);havoc main_#t~nondet1#1; 20#L21-1true havoc main_#t~nondet4#1;assume 0 == main_#t~nondet4#1 || 1 == main_#t~nondet4#1; 26#L32true assume !(0 != main_#t~nondet4#1 % 256);havoc main_#t~nondet4#1; 4#L32-1true [2024-11-13 15:23:41,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:41,775 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 15:23:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:23:41,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896865618] [2024-11-13 15:23:41,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:41,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:23:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:23:41,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:23:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:23:41,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:23:41,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:41,937 INFO L85 PathProgramCache]: Analyzing trace with hash -951343873, now seen corresponding path program 1 times [2024-11-13 15:23:41,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:23:41,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670395883] [2024-11-13 15:23:41,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:41,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:23:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:23:41,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:23:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:23:42,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:23:42,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:23:42,029 INFO L85 PathProgramCache]: Analyzing trace with hash -260782399, now seen corresponding path program 1 times [2024-11-13 15:23:42,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:23:42,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837218017] [2024-11-13 15:23:42,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:23:42,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:23:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:23:42,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:23:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:23:42,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:23:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:23:42,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:23:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:23:42,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:23:42 BoogieIcfgContainer [2024-11-13 15:23:42,570 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:23:42,571 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:23:42,571 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:23:42,571 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:23:42,572 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:23:41" (3/4) ... [2024-11-13 15:23:42,575 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 15:23:42,627 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:23:42,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:23:42,631 INFO L158 Benchmark]: Toolchain (without parser) took 1829.45ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 38.8MB in the end (delta: 55.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-13 15:23:42,631 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:23:42,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.90ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 83.3MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:23:42,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.96ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:23:42,633 INFO L158 Benchmark]: Boogie Preprocessor took 66.69ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:23:42,633 INFO L158 Benchmark]: RCFGBuilder took 388.22ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 69.2MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:23:42,634 INFO L158 Benchmark]: BuchiAutomizer took 927.72ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 40.8MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:23:42,634 INFO L158 Benchmark]: Witness Printer took 56.53ms. Allocated memory is still 117.4MB. Free memory was 40.8MB in the beginning and 38.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:23:42,643 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.90ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 83.3MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.96ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.69ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 388.22ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 69.2MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 927.72ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 40.8MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 56.53ms. Allocated memory is still 117.4MB. Free memory was 40.8MB in the beginning and 38.8MB in the end (delta: 2.1MB). 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 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L16] int m = 0; [L17] int n = 0; VAL [m=0, n=0] Loop: [L18] COND TRUE 1 [L19] CALL __VERIFIER_assert(m <= 60) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(m <= 60) [L20] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(n <= 60) [L21] COND FALSE !(__VERIFIER_nondet_bool()) [L32] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L16] int m = 0; [L17] int n = 0; VAL [m=0, n=0] Loop: [L18] COND TRUE 1 [L19] CALL __VERIFIER_assert(m <= 60) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(m <= 60) [L20] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(n <= 60) [L21] COND FALSE !(__VERIFIER_nondet_bool()) [L32] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 15:23:42,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b913f47-cf52-4df9-9ef8-1dfa6b5bdc4d/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)