./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 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/bh2017-ex-add.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU --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 0.2.5-dev-4fc63b2 [2024-10-31 22:11:26,376 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:11:26,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:11:26,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:11:26,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:11:26,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:11:26,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:11:26,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:11:26,521 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:11:26,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:11:26,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:11:26,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:11:26,526 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:11:26,527 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:11:26,528 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:11:26,530 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:11:26,531 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:11:26,531 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:11:26,532 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:11:26,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:11:26,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:11:26,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:11:26,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:11:26,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:11:26,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:11:26,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:11:26,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:11:26,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:11:26,536 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:11:26,537 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:11:26,537 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:11:26,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:11:26,538 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:11:26,539 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:11:26,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:11:26,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:11:26,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:11:26,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:11:26,541 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:11:26,542 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9067bcd66b4865bfb6aa4fb5c23797c879c2b81c36d918479d6650dc5a4b5edc [2024-10-31 22:11:26,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:11:26,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:11:26,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:11:26,922 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:11:26,923 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:11:26,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/loop-lit/bh2017-ex-add.i Unable to find full path for "g++" [2024-10-31 22:11:29,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:11:29,466 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:11:29,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/sv-benchmarks/c/loop-lit/bh2017-ex-add.i [2024-10-31 22:11:29,476 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/data/df0f84d68/b1269167c5974b2195da8730cdaecb73/FLAG97143c521 [2024-10-31 22:11:29,498 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/data/df0f84d68/b1269167c5974b2195da8730cdaecb73 [2024-10-31 22:11:29,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:11:29,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:11:29,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:29,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:11:29,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:11:29,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a05384b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29, skipping insertion in model container [2024-10-31 22:11:29,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:11:29,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:29,816 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:11:29,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:29,865 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:11:29,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29 WrapperNode [2024-10-31 22:11:29,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:29,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:29,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:11:29,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:11:29,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,907 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 78 [2024-10-31 22:11:29,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:29,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:11:29,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:11:29,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:11:29,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,942 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]. [2024-10-31 22:11:29,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:11:29,965 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:11:29,965 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:11:29,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:11:29,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (1/1) ... [2024-10-31 22:11:29,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:11:29,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:11:30,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:11:30,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:11:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:11:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:11:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:11:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:11:30,118 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:11:30,121 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:11:30,306 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-31 22:11:30,307 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:11:30,327 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:11:30,327 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:11:30,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:30 BoogieIcfgContainer [2024-10-31 22:11:30,328 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:11:30,329 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:11:30,329 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:11:30,334 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:11:30,335 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:11:30,337 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:11:29" (1/3) ... [2024-10-31 22:11:30,339 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3404e5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:11:30, skipping insertion in model container [2024-10-31 22:11:30,339 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:11:30,339 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:29" (2/3) ... [2024-10-31 22:11:30,342 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3404e5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:11:30, skipping insertion in model container [2024-10-31 22:11:30,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:11:30,342 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:30" (3/3) ... [2024-10-31 22:11:30,344 INFO L332 chiAutomizerObserver]: Analyzing ICFG bh2017-ex-add.i [2024-10-31 22:11:30,418 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:11:30,418 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:11:30,418 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:11:30,418 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:11:30,418 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:11:30,419 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:11:30,419 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:11:30,419 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:11:30,423 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) [2024-10-31 22:11:30,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2024-10-31 22:11:30,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:11:30,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:11:30,449 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:11:30,449 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:30,449 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:11:30,450 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) [2024-10-31 22:11:30,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2024-10-31 22:11:30,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:11:30,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:11:30,454 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:11:30,454 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:30,462 INFO L745 eck$LassoCheckResult]: Stem: 33#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_~m~0#1, main_~n~0#1;main_~m~0#1 := 0;main_~n~0#1 := 0; 4#L32-1true [2024-10-31 22:11:30,463 INFO L747 eck$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 [2024-10-31 22:11:30,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:30,471 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:11:30,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:30,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132699684] [2024-10-31 22:11:30,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:30,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:30,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:30,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:11:30,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:30,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1708553599, now seen corresponding path program 1 times [2024-10-31 22:11:30,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:30,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067472139] [2024-10-31 22:11:30,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:30,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:30,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:30,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:11:30,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1895852223, now seen corresponding path program 1 times [2024-10-31 22:11:30,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:30,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426700060] [2024-10-31 22:11:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:30,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:30,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:30,733 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:11:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:31,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:31,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:11:31 BoogieIcfgContainer [2024-10-31 22:11:31,228 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:11:31,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:11:31,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:11:31,230 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:11:31,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:30" (3/4) ... [2024-10-31 22:11:31,233 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:11:31,281 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:11:31,281 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:11:31,283 INFO L158 Benchmark]: Toolchain (without parser) took 1778.07ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 97.5MB in the beginning and 152.6MB in the end (delta: -55.0MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2024-10-31 22:11:31,284 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory is still 108.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:11:31,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.61ms. Allocated memory is still 136.3MB. Free memory was 97.3MB in the beginning and 85.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:11:31,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.34ms. Allocated memory is still 136.3MB. Free memory was 85.2MB in the beginning and 83.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:11:31,287 INFO L158 Benchmark]: Boogie Preprocessor took 55.67ms. Allocated memory is still 136.3MB. Free memory was 83.6MB in the beginning and 81.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:11:31,290 INFO L158 Benchmark]: RCFGBuilder took 363.27ms. Allocated memory is still 136.3MB. Free memory was 81.8MB in the beginning and 70.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:11:31,291 INFO L158 Benchmark]: BuchiAutomizer took 899.59ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 70.0MB in the beginning and 154.6MB in the end (delta: -84.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:11:31,292 INFO L158 Benchmark]: Witness Printer took 51.80ms. Allocated memory is still 192.9MB. Free memory was 153.5MB in the beginning and 152.6MB in the end (delta: 947.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:11:31,299 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory is still 108.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.61ms. Allocated memory is still 136.3MB. Free memory was 97.3MB in the beginning and 85.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.34ms. Allocated memory is still 136.3MB. Free memory was 85.2MB in the beginning and 83.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.67ms. Allocated memory is still 136.3MB. Free memory was 83.6MB in the beginning and 81.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.27ms. Allocated memory is still 136.3MB. Free memory was 81.8MB in the beginning and 70.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 899.59ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 70.0MB in the beginning and 154.6MB in the end (delta: -84.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.80ms. Allocated memory is still 192.9MB. Free memory was 153.5MB in the beginning and 152.6MB in the end (delta: 947.1kB). 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! [2024-10-31 22:11:31,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f614733-940e-4bce-a9fa-6e259f93f580/bin/uautomizer-verify-4GaUIPS5ZU/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)