./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex05.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 fe18722fa54a7078517ae7582e6099223a71d937bfeb5065d832643df19b81c8 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:10:54,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:10:54,886 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-20 22:10:54,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:10:54,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:10:54,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:10:54,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:10:54,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:10:54,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:10:54,913 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:10:54,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:10:54,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:10:54,914 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:10:54,915 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-20 22:10:54,916 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-20 22:10:54,916 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-20 22:10:54,916 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-20 22:10:54,919 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-20 22:10:54,919 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-20 22:10:54,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:10:54,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-20 22:10:54,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:10:54,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:10:54,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-20 22:10:54,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-20 22:10:54,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-20 22:10:54,923 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:10:54,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:10:54,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:10:54,924 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-20 22:10:54,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:10:54,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:10:54,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:10:54,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:10:54,925 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:10:54,926 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-20 22:10:54,926 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe18722fa54a7078517ae7582e6099223a71d937bfeb5065d832643df19b81c8 [2024-11-20 22:10:55,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:10:55,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:10:55,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:10:55,155 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:10:55,156 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:10:55,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex05.c [2024-11-20 22:10:56,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:10:56,489 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:10:56,489 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex05.c [2024-11-20 22:10:56,494 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dce4a313/d78e935948864722862ad1cc27aaad3e/FLAG133838330 [2024-11-20 22:10:56,505 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dce4a313/d78e935948864722862ad1cc27aaad3e [2024-11-20 22:10:56,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:10:56,508 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:10:56,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:10:56,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:10:56,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:10:56,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633aaaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56, skipping insertion in model container [2024-11-20 22:10:56,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,525 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:10:56,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:10:56,669 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:10:56,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:10:56,690 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:10:56,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56 WrapperNode [2024-11-20 22:10:56,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:10:56,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:10:56,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:10:56,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:10:56,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,709 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2024-11-20 22:10:56,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:10:56,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:10:56,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:10:56,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:10:56,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,721 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,724 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-20 22:10:56,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:10:56,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:10:56,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:10:56,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:10:56,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (1/1) ... [2024-11-20 22:10:56,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:56,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:56,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:56,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-20 22:10:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:10:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:10:56,840 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:10:56,841 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:10:56,864 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-11-20 22:10:56,864 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:10:56,873 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:10:56,874 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 22:10:56,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:10:56 BoogieIcfgContainer [2024-11-20 22:10:56,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:10:56,876 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-20 22:10:56,876 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-20 22:10:56,879 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-20 22:10:56,879 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:10:56,880 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:10:56" (1/3) ... [2024-11-20 22:10:56,880 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fac5fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:10:56, skipping insertion in model container [2024-11-20 22:10:56,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:10:56,881 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:56" (2/3) ... [2024-11-20 22:10:56,881 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fac5fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:10:56, skipping insertion in model container [2024-11-20 22:10:56,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:10:56,882 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:10:56" (3/3) ... [2024-11-20 22:10:56,883 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex05.c [2024-11-20 22:10:56,926 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-20 22:10:56,926 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-20 22:10:56,926 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-20 22:10:56,926 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-20 22:10:56,927 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-20 22:10:56,927 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-20 22:10:56,927 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-20 22:10:56,927 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-20 22:10:56,930 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) [2024-11-20 22:10:56,944 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-20 22:10:56,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:10:56,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:10:56,948 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:10:56,948 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-20 22:10:56,948 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-20 22:10:56,949 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) [2024-11-20 22:10:56,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-20 22:10:56,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:10:56,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:10:56,951 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:10:56,951 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-20 22:10:56,956 INFO L745 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L9-2true [2024-11-20 22:10:56,956 INFO L747 eck$LassoCheckResult]: Loop: 5#L9-2true assume !false; 5#L9-2true [2024-11-20 22:10:56,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:56,963 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-20 22:10:56,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:56,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350834817] [2024-11-20 22:10:56,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:56,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:57,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:57,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:57,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:57,053 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2024-11-20 22:10:57,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:57,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939145681] [2024-11-20 22:10:57,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:57,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:57,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:57,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:57,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:57,063 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-20 22:10:57,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:57,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294966999] [2024-11-20 22:10:57,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:57,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:57,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:57,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:57,106 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:57,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:10:57 BoogieIcfgContainer [2024-11-20 22:10:57,127 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-20 22:10:57,138 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:10:57,138 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:10:57,138 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:10:57,139 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:10:56" (3/4) ... [2024-11-20 22:10:57,140 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-20 22:10:57,195 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 22:10:57,196 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:10:57,197 INFO L158 Benchmark]: Toolchain (without parser) took 688.20ms. Allocated memory is still 169.9MB. Free memory was 115.1MB in the beginning and 138.9MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:10:57,197 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 89.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:10:57,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.76ms. Allocated memory is still 169.9MB. Free memory was 115.1MB in the beginning and 103.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 22:10:57,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.02ms. Allocated memory is still 169.9MB. Free memory was 103.3MB in the beginning and 102.5MB in the end (delta: 843.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:10:57,199 INFO L158 Benchmark]: Boogie Preprocessor took 19.48ms. Allocated memory is still 169.9MB. Free memory was 101.8MB in the beginning and 100.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:10:57,199 INFO L158 Benchmark]: RCFGBuilder took 144.73ms. Allocated memory is still 169.9MB. Free memory was 100.6MB in the beginning and 92.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-20 22:10:57,199 INFO L158 Benchmark]: BuchiAutomizer took 251.57ms. Allocated memory is still 169.9MB. Free memory was 92.1MB in the beginning and 77.3MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-20 22:10:57,200 INFO L158 Benchmark]: Witness Printer took 57.71ms. Allocated memory is still 169.9MB. Free memory was 140.1MB in the beginning and 138.9MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 22:10:57,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 89.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.76ms. Allocated memory is still 169.9MB. Free memory was 115.1MB in the beginning and 103.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.02ms. Allocated memory is still 169.9MB. Free memory was 103.3MB in the beginning and 102.5MB in the end (delta: 843.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.48ms. Allocated memory is still 169.9MB. Free memory was 101.8MB in the beginning and 100.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 144.73ms. Allocated memory is still 169.9MB. Free memory was 100.6MB in the beginning and 92.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 251.57ms. Allocated memory is still 169.9MB. Free memory was 92.1MB in the beginning and 77.3MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 57.71ms. Allocated memory is still 169.9MB. Free memory was 140.1MB in the beginning and 138.9MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. 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 0.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. 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: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE \read(true) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE \read(true) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-20 22:10:57,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)