./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/bh2017-ex3.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/bh2017-ex3.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 67c3f42f5641e6993fb8445c2fa4fe121d859872ed17b178229098422831f110 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:34:25,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:34:26,010 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:34:26,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:34:26,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:34:26,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:34:26,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:34:26,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:34:26,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:34:26,029 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:34:26,029 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:34:26,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:34:26,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:34:26,030 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:34:26,030 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:34:26,030 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:34:26,031 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:34:26,031 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:34:26,031 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:34:26,031 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:34:26,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:34:26,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:34:26,032 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:34:26,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:34:26,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:34:26,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:34:26,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:34:26,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:34:26,033 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:34:26,034 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:34:26,034 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:34:26,034 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:34:26,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:34:26,034 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:34:26,035 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:34:26,035 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:34:26,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:34:26,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:34:26,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:34:26,036 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:34:26,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67c3f42f5641e6993fb8445c2fa4fe121d859872ed17b178229098422831f110 [2024-11-17 08:34:26,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:34:26,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:34:26,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:34:26,282 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:34:26,283 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:34:26,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/bh2017-ex3.i [2024-11-17 08:34:27,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:34:27,671 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:34:27,672 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/bh2017-ex3.i [2024-11-17 08:34:27,678 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33bbad55d/1c0a6077d9c346138306f4ad1a0684a3/FLAG6adaa02fc [2024-11-17 08:34:28,089 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33bbad55d/1c0a6077d9c346138306f4ad1a0684a3 [2024-11-17 08:34:28,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:34:28,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:34:28,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:34:28,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:34:28,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:34:28,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2739e9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28, skipping insertion in model container [2024-11-17 08:34:28,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:34:28,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:34:28,276 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:34:28,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:34:28,306 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:34:28,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28 WrapperNode [2024-11-17 08:34:28,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:34:28,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:34:28,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:34:28,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:34:28,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,320 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,334 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 72 [2024-11-17 08:34:28,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:34:28,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:34:28,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:34:28,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:34:28,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,355 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 08:34:28,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,358 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:34:28,362 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:34:28,362 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:34:28,362 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:34:28,363 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (1/1) ... [2024-11-17 08:34:28,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:28,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:28,392 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 08:34:28,403 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 08:34:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:34:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:34:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:34:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:34:28,495 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:34:28,497 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:34:28,706 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-17 08:34:28,706 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:34:28,718 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:34:28,719 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:34:28,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:34:28 BoogieIcfgContainer [2024-11-17 08:34:28,719 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:34:28,720 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:34:28,720 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:34:28,723 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:34:28,724 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:34:28,724 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:34:28" (1/3) ... [2024-11-17 08:34:28,725 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58f9b7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:34:28, skipping insertion in model container [2024-11-17 08:34:28,725 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:34:28,725 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:28" (2/3) ... [2024-11-17 08:34:28,726 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58f9b7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:34:28, skipping insertion in model container [2024-11-17 08:34:28,726 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:34:28,726 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:34:28" (3/3) ... [2024-11-17 08:34:28,727 INFO L332 chiAutomizerObserver]: Analyzing ICFG bh2017-ex3.i [2024-11-17 08:34:28,770 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:34:28,771 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:34:28,771 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:34:28,771 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:34:28,771 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:34:28,771 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:34:28,771 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:34:28,771 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:34:28,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 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 08:34:28,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-11-17 08:34:28,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:34:28,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:34:28,796 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:34:28,796 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:34:28,796 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:34:28,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 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 08:34:28,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-11-17 08:34:28,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:34:28,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:34:28,798 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:34:28,798 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:34:28,804 INFO L745 eck$LassoCheckResult]: Stem: 17#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(9, 2); 28#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~nondet2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~post5#1, main_~m~0#1, main_~n~0#1;main_~m~0#1 := 0;main_~n~0#1 := 0; 27#L18true [2024-11-17 08:34:28,804 INFO L747 eck$LassoCheckResult]: Loop: 27#L18true assume true; 18#L18-1true 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; 6#L13-3true assume !(0 == __VERIFIER_assert_~cond#1); 23#__VERIFIER_assert_returnLabel#1true assume true;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; 14#L13-2true assume !(0 == __VERIFIER_assert_~cond#1); 7#__VERIFIER_assert_returnLabel#2true 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; 30#L21true assume !(0 != main_#t~nondet1#1 % 256);havoc main_#t~nondet1#1;havoc main_#t~nondet4#1;assume 0 == main_#t~nondet4#1 || 1 == main_#t~nondet4#1; 26#L33true assume !(0 != main_#t~nondet4#1 % 256);havoc main_#t~nondet4#1; 27#L18true [2024-11-17 08:34:28,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2496, now seen corresponding path program 1 times [2024-11-17 08:34:28,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:28,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229290130] [2024-11-17 08:34:28,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:28,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:28,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:28,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:28,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash 882631219, now seen corresponding path program 1 times [2024-11-17 08:34:28,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:28,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276495685] [2024-11-17 08:34:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:28,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:28,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:28,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:28,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:28,955 INFO L85 PathProgramCache]: Analyzing trace with hash 999406834, now seen corresponding path program 1 times [2024-11-17 08:34:28,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:28,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025873517] [2024-11-17 08:34:28,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:28,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:28,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:28,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:29,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:29,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:34:29 BoogieIcfgContainer [2024-11-17 08:34:29,259 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:34:29,260 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:34:29,260 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:34:29,260 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:34:29,261 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:34:28" (3/4) ... [2024-11-17 08:34:29,263 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:34:29,292 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:34:29,293 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:34:29,294 INFO L158 Benchmark]: Toolchain (without parser) took 1200.98ms. Allocated memory is still 161.5MB. Free memory was 124.8MB in the beginning and 93.7MB in the end (delta: 31.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2024-11-17 08:34:29,295 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:29,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.81ms. Allocated memory is still 161.5MB. Free memory was 124.8MB in the beginning and 111.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 08:34:29,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.16ms. Allocated memory is still 161.5MB. Free memory was 111.2MB in the beginning and 110.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:29,296 INFO L158 Benchmark]: Boogie Preprocessor took 25.26ms. Allocated memory is still 161.5MB. Free memory was 110.1MB in the beginning and 108.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:34:29,296 INFO L158 Benchmark]: IcfgBuilder took 357.11ms. Allocated memory is still 161.5MB. Free memory was 108.0MB in the beginning and 127.2MB in the end (delta: -19.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 08:34:29,296 INFO L158 Benchmark]: BuchiAutomizer took 538.97ms. Allocated memory is still 161.5MB. Free memory was 127.2MB in the beginning and 95.8MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-17 08:34:29,297 INFO L158 Benchmark]: Witness Printer took 32.95ms. Allocated memory is still 161.5MB. Free memory was 94.7MB in the beginning and 93.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:29,298 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.81ms. Allocated memory is still 161.5MB. Free memory was 124.8MB in the beginning and 111.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.16ms. Allocated memory is still 161.5MB. Free memory was 111.2MB in the beginning and 110.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.26ms. Allocated memory is still 161.5MB. Free memory was 110.1MB in the beginning and 108.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 357.11ms. Allocated memory is still 161.5MB. Free memory was 108.0MB in the beginning and 127.2MB in the end (delta: -19.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 538.97ms. Allocated memory is still 161.5MB. Free memory was 127.2MB in the beginning and 95.8MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 32.95ms. Allocated memory is still 161.5MB. Free memory was 94.7MB in the beginning and 93.7MB in the end (delta: 1.0MB). 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 0.4s 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: 18]: 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()) [L33] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 18]: 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()) [L33] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:34:29,324 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)