./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/hh2012-ex2b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/loop-lit/hh2012-ex2b.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 33d07b945bedf27c99ae2e0c2f8250a85a01f89cb7fb82b15572e4678e4d0d97 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:34:36,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:34:36,545 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:34:36,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:34:36,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:34:36,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:34:36,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:34:36,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:34:36,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:34:36,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:34:36,590 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:34:36,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:34:36,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:34:36,591 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:34:36,592 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:34:36,592 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:34:36,592 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:34:36,592 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:34:36,593 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:34:36,593 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:34:36,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:34:36,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:34:36,598 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:34:36,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:34:36,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:34:36,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:34:36,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:34:36,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:34:36,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:34:36,600 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:34:36,601 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:34:36,601 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:34:36,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:34:36,602 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:34:36,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:34:36,602 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:34:36,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:34:36,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:34:36,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:34:36,603 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:34:36,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33d07b945bedf27c99ae2e0c2f8250a85a01f89cb7fb82b15572e4678e4d0d97 [2024-11-17 08:34:36,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:34:36,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:34:36,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:34:36,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:34:36,916 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:34:36,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/hh2012-ex2b.i [2024-11-17 08:34:38,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:34:38,586 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:34:38,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/hh2012-ex2b.i [2024-11-17 08:34:38,594 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/889c5bd61/4eb06d28e56947eb976320a2c20de6ec/FLAGf328e3c40 [2024-11-17 08:34:38,606 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/889c5bd61/4eb06d28e56947eb976320a2c20de6ec [2024-11-17 08:34:38,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:34:38,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:34:38,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:34:38,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:34:38,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:34:38,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a60e665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38, skipping insertion in model container [2024-11-17 08:34:38,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:34:38,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:34:38,849 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:34:38,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:34:38,878 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:34:38,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38 WrapperNode [2024-11-17 08:34:38,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:34:38,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:34:38,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:34:38,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:34:38,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,906 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 40 [2024-11-17 08:34:38,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:34:38,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:34:38,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:34:38,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:34:38,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,926 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]. [2024-11-17 08:34:38,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,931 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:34:38,937 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:34:38,937 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:34:38,937 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:34:38,938 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (1/1) ... [2024-11-17 08:34:38,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:38,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:39,010 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) [2024-11-17 08:34:39,041 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 [2024-11-17 08:34:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:34:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:34:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:34:39,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:34:39,151 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:34:39,155 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:34:39,292 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-17 08:34:39,292 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:34:39,306 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:34:39,307 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:34:39,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:34:39 BoogieIcfgContainer [2024-11-17 08:34:39,308 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:34:39,309 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:34:39,310 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:34:39,313 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:34:39,315 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:34:39,316 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:34:38" (1/3) ... [2024-11-17 08:34:39,317 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29ad331f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:34:39, skipping insertion in model container [2024-11-17 08:34:39,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:34:39,317 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:38" (2/3) ... [2024-11-17 08:34:39,317 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29ad331f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:34:39, skipping insertion in model container [2024-11-17 08:34:39,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:34:39,318 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:34:39" (3/3) ... [2024-11-17 08:34:39,319 INFO L332 chiAutomizerObserver]: Analyzing ICFG hh2012-ex2b.i [2024-11-17 08:34:39,377 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:34:39,377 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:34:39,377 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:34:39,377 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:34:39,378 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:34:39,378 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:34:39,378 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:34:39,378 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:34:39,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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) [2024-11-17 08:34:39,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-17 08:34:39,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:34:39,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:34:39,407 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:34:39,407 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:34:39,407 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:34:39,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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) [2024-11-17 08:34:39,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-17 08:34:39,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:34:39,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:34:39,411 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:34:39,411 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:34:39,416 INFO L745 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue 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(10, 2); 15#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~n~0#1;main_~n~0#1 := 0; 12#L17true [2024-11-17 08:34:39,417 INFO L747 eck$LassoCheckResult]: Loop: 12#L17true assume true; 17#L17-1true assume !false;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; 13#L13-1true assume !(0 == __VERIFIER_assert_~cond#1); 7#__VERIFIER_assert_returnLabel#1true assume true;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; 18#L19true assume !(0 != main_#t~nondet1#1 % 256);havoc main_#t~nondet1#1; 12#L17true [2024-11-17 08:34:39,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:39,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1856, now seen corresponding path program 1 times [2024-11-17 08:34:39,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:39,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389183716] [2024-11-17 08:34:39,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:39,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:39,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:39,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:39,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:39,555 INFO L85 PathProgramCache]: Analyzing trace with hash 52451827, now seen corresponding path program 1 times [2024-11-17 08:34:39,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:39,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063961352] [2024-11-17 08:34:39,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:39,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:39,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:39,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:39,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:39,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1619919380, now seen corresponding path program 1 times [2024-11-17 08:34:39,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:39,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869048987] [2024-11-17 08:34:39,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:39,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:39,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:39,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:39,860 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:39,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:34:39 BoogieIcfgContainer [2024-11-17 08:34:39,884 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:34:39,884 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:34:39,884 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:34:39,884 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:34:39,885 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:34:39" (3/4) ... [2024-11-17 08:34:39,887 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:34:39,915 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:34:39,916 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:34:39,917 INFO L158 Benchmark]: Toolchain (without parser) took 1306.04ms. Allocated memory is still 182.5MB. Free memory was 115.0MB in the beginning and 119.5MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:39,917 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 182.5MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:39,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.13ms. Allocated memory is still 182.5MB. Free memory was 114.8MB in the beginning and 103.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 08:34:39,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.30ms. Allocated memory is still 182.5MB. Free memory was 102.7MB in the beginning and 101.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:39,919 INFO L158 Benchmark]: Boogie Preprocessor took 29.03ms. Allocated memory is still 182.5MB. Free memory was 101.4MB in the beginning and 99.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:34:39,919 INFO L158 Benchmark]: IcfgBuilder took 371.44ms. Allocated memory is still 182.5MB. Free memory was 99.9MB in the beginning and 146.7MB in the end (delta: -46.8MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-17 08:34:39,920 INFO L158 Benchmark]: BuchiAutomizer took 574.60ms. Allocated memory is still 182.5MB. Free memory was 146.7MB in the beginning and 120.4MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-17 08:34:39,921 INFO L158 Benchmark]: Witness Printer took 31.45ms. Allocated memory is still 182.5MB. Free memory was 120.4MB in the beginning and 119.5MB in the end (delta: 940.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:39,924 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 182.5MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.13ms. Allocated memory is still 182.5MB. Free memory was 114.8MB in the beginning and 103.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.30ms. Allocated memory is still 182.5MB. Free memory was 102.7MB in the beginning and 101.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.03ms. Allocated memory is still 182.5MB. Free memory was 101.4MB in the beginning and 99.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 371.44ms. Allocated memory is still 182.5MB. Free memory was 99.9MB in the beginning and 146.7MB in the end (delta: -46.8MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 574.60ms. Allocated memory is still 182.5MB. Free memory was 146.7MB in the beginning and 120.4MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 31.45ms. Allocated memory is still 182.5MB. Free memory was 120.4MB in the beginning and 119.5MB in the end (delta: 940.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L16] int n = 0; VAL [n=0] Loop: [L17] COND TRUE 1 [L18] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(n <= 60) [L19] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L16] int n = 0; VAL [n=0] Loop: [L17] COND TRUE 1 [L18] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(n <= 60) [L19] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:34:39,949 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)