./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml', '-i', '../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '7ec1d1d4856d24b14cb09101172e0975902985e260ca74737e781ce301d37cbb'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7ec1d1d4856d24b14cb09101172e0975902985e260ca74737e781ce301d37cbb --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:47:35,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:47:35,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-07 23:47:35,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:47:35,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:47:35,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:47:35,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:47:35,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:47:35,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:47:35,498 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:47:35,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:47:35,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:47:35,498 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:47:35,498 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-07 23:47:35,498 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-07 23:47:35,498 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-07 23:47:35,498 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-07 23:47:35,498 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-07 23:47:35,498 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-07 23:47:35,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:47:35,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:47:35,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:47:35,499 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-07 23:47:35,499 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ec1d1d4856d24b14cb09101172e0975902985e260ca74737e781ce301d37cbb [2024-11-07 23:47:35,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:47:35,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:47:35,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:47:35,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:47:35,743 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:47:35,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2024-11-07 23:47:36,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:47:37,062 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:47:37,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2024-11-07 23:47:37,069 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e78b2085/6b46448573d14117ad9543b7988bea2e/FLAG4dd1d9393 [2024-11-07 23:47:37,432 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e78b2085/6b46448573d14117ad9543b7988bea2e [2024-11-07 23:47:37,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:47:37,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:47:37,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:47:37,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:47:37,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:47:37,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1529dcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37, skipping insertion in model container [2024-11-07 23:47:37,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,446 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:47:37,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:47:37,524 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:47:37,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:47:37,538 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:47:37,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37 WrapperNode [2024-11-07 23:47:37,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:47:37,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:47:37,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:47:37,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:47:37,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,553 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2024-11-07 23:47:37,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:47:37,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:47:37,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:47:37,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:47:37,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,561 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-07 23:47:37,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,562 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:47:37,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:47:37,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:47:37,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:47:37,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (1/1) ... [2024-11-07 23:47:37,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:37,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:37,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-07 23:47:37,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-07 23:47:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:47:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:47:37,666 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:47:37,668 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:47:37,704 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-07 23:47:37,704 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:47:37,709 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:47:37,710 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 23:47:37,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:47:37 BoogieIcfgContainer [2024-11-07 23:47:37,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:47:37,711 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-07 23:47:37,711 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-07 23:47:37,714 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-07 23:47:37,715 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-07 23:47:37,715 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 11:47:37" (1/3) ... [2024-11-07 23:47:37,716 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63300716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 11:47:37, skipping insertion in model container [2024-11-07 23:47:37,716 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-07 23:47:37,717 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:37" (2/3) ... [2024-11-07 23:47:37,717 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63300716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 11:47:37, skipping insertion in model container [2024-11-07 23:47:37,717 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-07 23:47:37,717 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:47:37" (3/3) ... [2024-11-07 23:47:37,719 INFO L332 chiAutomizerObserver]: Analyzing ICFG Urban-WST2013-Fig1.c [2024-11-07 23:47:37,754 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-07 23:47:37,754 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-07 23:47:37,754 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-07 23:47:37,754 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-07 23:47:37,755 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-07 23:47:37,755 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-07 23:47:37,755 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-07 23:47:37,755 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-07 23:47:37,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2024-11-07 23:47:37,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-07 23:47:37,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-07 23:47:37,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-07 23:47:37,770 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-07 23:47:37,770 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-07 23:47:37,770 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-07 23:47:37,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2024-11-07 23:47:37,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-07 23:47:37,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-07 23:47:37,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-07 23:47:37,771 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-07 23:47:37,771 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-07 23:47:37,776 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L18-2true [2024-11-07 23:47:37,776 INFO L747 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0#1 <= 10); 3#L18true assume !(main_~x~0#1 > 6); 6#L18-2true [2024-11-07 23:47:37,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-07 23:47:37,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:37,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492966969] [2024-11-07 23:47:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:37,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:37,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:37,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:37,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:37,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-11-07 23:47:37,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:37,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214622792] [2024-11-07 23:47:37,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:37,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:37,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:37,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:37,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:37,843 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-11-07 23:47:37,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:37,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181996433] [2024-11-07 23:47:37,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:37,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:37,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:37,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:37,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:37,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 11:47:37 BoogieIcfgContainer [2024-11-07 23:47:37,903 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-07 23:47:37,903 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:47:37,903 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:47:37,904 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:47:37,904 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:47:37" (3/4) ... [2024-11-07 23:47:37,905 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-07 23:47:37,925 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:47:37,926 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:47:37,926 INFO L158 Benchmark]: Toolchain (without parser) took 491.97ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 59.1MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-07 23:47:37,927 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:47:37,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 103.82ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 83.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:47:37,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 13.92ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:47:37,929 INFO L158 Benchmark]: Boogie Preprocessor took 13.09ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.3MB in the end (delta: 780.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:47:37,930 INFO L158 Benchmark]: RCFGBuilder took 142.82ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 73.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:47:37,930 INFO L158 Benchmark]: BuchiAutomizer took 191.82ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 60.7MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 23:47:37,931 INFO L158 Benchmark]: Witness Printer took 22.22ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 59.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:47:37,932 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 103.82ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 83.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 13.92ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.09ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.3MB in the end (delta: 780.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 142.82ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 73.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 191.82ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 60.7MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 22.22ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 59.1MB in the end (delta: 1.6MB). 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 0.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L15] int x; [L16] x = __VERIFIER_nondet_int() Loop: [L17] COND TRUE x <= 10 [L18] COND FALSE !(x > 6) 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: [L15] int x; [L16] x = __VERIFIER_nondet_int() Loop: [L17] COND TRUE x <= 10 [L18] COND FALSE !(x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-07 23:47:37,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)