./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f 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/mine2017-ex4.7.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 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 23:05:19,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 23:05:19,248 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 23:05:19,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 23:05:19,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 23:05:19,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 23:05:19,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 23:05:19,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 23:05:19,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 23:05:19,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 23:05:19,301 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 23:05:19,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 23:05:19,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 23:05:19,302 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 23:05:19,302 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 23:05:19,302 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 23:05:19,302 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 23:05:19,303 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 23:05:19,303 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 23:05:19,303 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 23:05:19,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 23:05:19,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 23:05:19,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 23:05:19,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 23:05:19,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 23:05:19,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 23:05:19,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 23:05:19,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 23:05:19,305 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 23:05:19,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 23:05:19,306 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 23:05:19,306 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 23:05:19,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 23:05:19,307 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 23:05:19,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 23:05:19,307 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 23:05:19,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 23:05:19,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 23:05:19,308 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 23:05:19,308 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 23:05:19,308 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040 [2024-11-10 23:05:19,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 23:05:19,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 23:05:19,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 23:05:19,532 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 23:05:19,533 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 23:05:19,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i [2024-11-10 23:05:20,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 23:05:20,915 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 23:05:20,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/mine2017-ex4.7.i [2024-11-10 23:05:20,922 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a656c92b3/3631c0f0d89141e9bf2ecdc3294da901/FLAG7d4b5f710 [2024-11-10 23:05:21,327 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a656c92b3/3631c0f0d89141e9bf2ecdc3294da901 [2024-11-10 23:05:21,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 23:05:21,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 23:05:21,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 23:05:21,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 23:05:21,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 23:05:21,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17dde8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21, skipping insertion in model container [2024-11-10 23:05:21,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,376 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 23:05:21,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:05:21,512 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 23:05:21,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:05:21,537 INFO L204 MainTranslator]: Completed translation [2024-11-10 23:05:21,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21 WrapperNode [2024-11-10 23:05:21,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 23:05:21,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 23:05:21,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 23:05:21,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 23:05:21,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,548 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,560 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 44 [2024-11-10 23:05:21,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 23:05:21,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 23:05:21,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 23:05:21,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 23:05:21,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,581 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]. [2024-11-10 23:05:21,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,583 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 23:05:21,590 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 23:05:21,590 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 23:05:21,590 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 23:05:21,590 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (1/1) ... [2024-11-10 23:05:21,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:21,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:21,617 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) [2024-11-10 23:05:21,624 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 [2024-11-10 23:05:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 23:05:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 23:05:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 23:05:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 23:05:21,712 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 23:05:21,713 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 23:05:21,800 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-10 23:05:21,801 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 23:05:21,811 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 23:05:21,811 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 23:05:21,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:05:21 BoogieIcfgContainer [2024-11-10 23:05:21,812 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 23:05:21,813 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 23:05:21,813 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 23:05:21,816 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 23:05:21,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:05:21,817 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:05:21" (1/3) ... [2024-11-10 23:05:21,818 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41cb04e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:05:21, skipping insertion in model container [2024-11-10 23:05:21,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:05:21,818 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:21" (2/3) ... [2024-11-10 23:05:21,818 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41cb04e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:05:21, skipping insertion in model container [2024-11-10 23:05:21,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:05:21,819 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:05:21" (3/3) ... [2024-11-10 23:05:21,820 INFO L332 chiAutomizerObserver]: Analyzing ICFG mine2017-ex4.7.i [2024-11-10 23:05:21,861 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 23:05:21,861 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 23:05:21,861 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 23:05:21,861 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 23:05:21,862 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 23:05:21,862 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 23:05:21,862 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 23:05:21,862 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 23:05:21,865 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) [2024-11-10 23:05:21,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-10 23:05:21,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:05:21,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:05:21,883 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-10 23:05:21,883 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:05:21,883 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 23:05:21,884 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) [2024-11-10 23:05:21,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-10 23:05:21,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:05:21,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:05:21,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-10 23:05:21,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:05:21,891 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(22, 2); 16#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_~x~0#1;main_~x~0#1 := 0; 12#L17true [2024-11-10 23:05:21,892 INFO L747 eck$LassoCheckResult]: Loop: 12#L17true assume true;havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1; 18#L17-1true assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~x~0#1 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); 8#__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_~x~0#1 <= 40 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 15#L13true assume !(0 == __VERIFIER_assert_~cond#1); 10#__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~nondet2#1;assume 0 == main_#t~nondet2#1 || 1 == main_#t~nondet2#1; 19#L20true assume !(0 == (if main_#t~nondet2#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet2#1 % 256 % 4294967296 else main_#t~nondet2#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet2#1; 12#L17true [2024-11-10 23:05:21,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:21,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1856, now seen corresponding path program 1 times [2024-11-10 23:05:21,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:21,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656526952] [2024-11-10 23:05:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:21,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:21,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:22,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:22,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:22,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1133401582, now seen corresponding path program 1 times [2024-11-10 23:05:22,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:22,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565438862] [2024-11-10 23:05:22,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:22,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:22,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:22,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:22,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1964363251, now seen corresponding path program 1 times [2024-11-10 23:05:22,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:22,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476528845] [2024-11-10 23:05:22,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:22,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:22,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:22,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:22,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:22,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 11:05:22 BoogieIcfgContainer [2024-11-10 23:05:22,348 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 23:05:22,349 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 23:05:22,349 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 23:05:22,349 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 23:05:22,350 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:05:21" (3/4) ... [2024-11-10 23:05:22,351 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-10 23:05:22,376 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 23:05:22,376 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 23:05:22,377 INFO L158 Benchmark]: Toolchain (without parser) took 1046.68ms. Allocated memory was 136.3MB in the beginning and 239.1MB in the end (delta: 102.8MB). Free memory was 67.6MB in the beginning and 158.5MB in the end (delta: -90.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-11-10 23:05:22,378 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:05:22,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.14ms. Allocated memory was 136.3MB in the beginning and 239.1MB in the end (delta: 102.8MB). Free memory was 67.4MB in the beginning and 204.7MB in the end (delta: -137.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-10 23:05:22,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.64ms. Allocated memory is still 239.1MB. Free memory was 204.7MB in the beginning and 203.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:05:22,379 INFO L158 Benchmark]: Boogie Preprocessor took 27.41ms. Allocated memory is still 239.1MB. Free memory was 203.6MB in the beginning and 201.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:05:22,380 INFO L158 Benchmark]: IcfgBuilder took 222.39ms. Allocated memory is still 239.1MB. Free memory was 201.5MB in the beginning and 191.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 23:05:22,380 INFO L158 Benchmark]: BuchiAutomizer took 535.88ms. Allocated memory is still 239.1MB. Free memory was 191.0MB in the beginning and 160.6MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-10 23:05:22,380 INFO L158 Benchmark]: Witness Printer took 27.24ms. Allocated memory is still 239.1MB. Free memory was 160.6MB in the beginning and 158.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:05:22,382 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.14ms. Allocated memory was 136.3MB in the beginning and 239.1MB in the end (delta: 102.8MB). Free memory was 67.4MB in the beginning and 204.7MB in the end (delta: -137.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.64ms. Allocated memory is still 239.1MB. Free memory was 204.7MB in the beginning and 203.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.41ms. Allocated memory is still 239.1MB. Free memory was 203.6MB in the beginning and 201.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 222.39ms. Allocated memory is still 239.1MB. Free memory was 201.5MB in the beginning and 191.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 535.88ms. Allocated memory is still 239.1MB. Free memory was 191.0MB in the beginning and 160.6MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 27.24ms. Allocated memory is still 239.1MB. Free memory was 160.6MB in the beginning and 158.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L16] int x = 0; VAL [x=0] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= x) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= x) [L19] CALL __VERIFIER_assert(x <= 40) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(x <= 40) [L20] COND FALSE !(__VERIFIER_nondet_bool() == 0) 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 x = 0; VAL [x=0] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= x) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= x) [L19] CALL __VERIFIER_assert(x <= 40) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(x <= 40) [L20] COND FALSE !(__VERIFIER_nondet_bool() == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-10 23:05:22,402 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)