./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd --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 95f92d67113368ce9163571f81d85414539d558535b51b4568b3b416ae740375 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:56:36,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:56:36,189 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 13:56:36,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:56:36,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:56:36,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:56:36,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:56:36,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:56:36,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:56:36,248 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:56:36,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:56:36,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:56:36,251 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:56:36,251 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 13:56:36,251 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 13:56:36,251 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 13:56:36,251 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 13:56:36,251 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 13:56:36,251 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 13:56:36,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:56:36,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 13:56:36,252 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:56:36,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:56:36,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 13:56:36,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 13:56:36,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 13:56:36,252 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:56:36,252 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:56:36,252 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:56:36,253 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 13:56:36,253 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:56:36,253 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:56:36,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:56:36,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:56:36,253 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:56:36,254 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 13:56:36,255 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd 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 -> 95f92d67113368ce9163571f81d85414539d558535b51b4568b3b416ae740375 [2024-11-13 13:56:36,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:56:36,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:56:36,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:56:36,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:56:36,696 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:56:36,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c Unable to find full path for "g++" [2024-11-13 13:56:38,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:56:39,252 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:56:39,257 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c [2024-11-13 13:56:39,281 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/data/f31b186ed/9eec643f5fc74ad5acc61881f743a160/FLAG5badf1adb [2024-11-13 13:56:39,335 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/data/f31b186ed/9eec643f5fc74ad5acc61881f743a160 [2024-11-13 13:56:39,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:56:39,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:56:39,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:56:39,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:56:39,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:56:39,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37263d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39, skipping insertion in model container [2024-11-13 13:56:39,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:56:39,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:56:39,581 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:56:39,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:56:39,613 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:56:39,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39 WrapperNode [2024-11-13 13:56:39,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:56:39,615 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:56:39,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:56:39,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:56:39,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,653 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2024-11-13 13:56:39,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:56:39,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:56:39,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:56:39,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:56:39,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,674 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 13:56:39,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:56:39,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:56:39,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:56:39,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:56:39,693 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (1/1) ... [2024-11-13 13:56:39,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:56:39,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:56:39,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:56:39,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 13:56:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:56:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:56:39,892 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:56:39,895 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:56:39,977 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-13 13:56:39,978 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:56:39,993 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:56:39,994 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:56:39,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:56:39 BoogieIcfgContainer [2024-11-13 13:56:39,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:56:39,996 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 13:56:39,996 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 13:56:40,004 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 13:56:40,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:56:40,006 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 01:56:39" (1/3) ... [2024-11-13 13:56:40,008 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13147db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:56:40, skipping insertion in model container [2024-11-13 13:56:40,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:56:40,009 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:56:39" (2/3) ... [2024-11-13 13:56:40,010 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13147db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:56:40, skipping insertion in model container [2024-11-13 13:56:40,010 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:56:40,010 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:56:39" (3/3) ... [2024-11-13 13:56:40,013 INFO L333 chiAutomizerObserver]: Analyzing ICFG NonTerminationSimple7.c [2024-11-13 13:56:40,103 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 13:56:40,104 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 13:56:40,104 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 13:56:40,104 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 13:56:40,104 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 13:56:40,105 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 13:56:40,105 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 13:56:40,105 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 13:56:40,112 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) [2024-11-13 13:56:40,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 13:56:40,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:56:40,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:56:40,140 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 13:56:40,141 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 13:56:40,141 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 13:56:40,142 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) [2024-11-13 13:56:40,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 13:56:40,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:56:40,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:56:40,144 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 13:56:40,146 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 13:56:40,155 INFO L745 eck$LassoCheckResult]: Stem: 4#$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_#t~nondet1#1, main_~c~0#1, main_~x~0#1;havoc main_~c~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;havoc main_#t~nondet1#1;main_~c~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L15true assume 0 == main_~c~0#1; 6#L16-2true [2024-11-13 13:56:40,155 INFO L747 eck$LassoCheckResult]: Loop: 6#L16-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 + main_~c~0#1; 6#L16-2true [2024-11-13 13:56:40,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:56:40,162 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-13 13:56:40,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:56:40,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728389351] [2024-11-13 13:56:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:56:40,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:56:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:56:40,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:56:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:56:40,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:56:40,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:56:40,308 INFO L85 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2024-11-13 13:56:40,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:56:40,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204769355] [2024-11-13 13:56:40,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:56:40,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:56:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:56:40,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:56:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:56:40,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:56:40,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:56:40,339 INFO L85 PathProgramCache]: Analyzing trace with hash 925611, now seen corresponding path program 1 times [2024-11-13 13:56:40,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:56:40,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512752509] [2024-11-13 13:56:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:56:40,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:56:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:56:40,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:56:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:56:40,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:56:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:56:40,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:56:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:56:40,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 01:56:40 BoogieIcfgContainer [2024-11-13 13:56:40,539 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 13:56:40,540 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:56:40,541 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:56:40,541 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:56:40,544 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:56:39" (3/4) ... [2024-11-13 13:56:40,547 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 13:56:40,587 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:56:40,587 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:56:40,589 INFO L158 Benchmark]: Toolchain (without parser) took 1243.98ms. Allocated memory is still 167.8MB. Free memory was 130.5MB in the beginning and 94.2MB in the end (delta: 36.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 13:56:40,590 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:56:40,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.70ms. Allocated memory is still 167.8MB. Free memory was 130.5MB in the beginning and 120.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:56:40,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.53ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 119.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:56:40,592 INFO L158 Benchmark]: Boogie Preprocessor took 32.70ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 118.8MB in the end (delta: 939.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:56:40,592 INFO L158 Benchmark]: RCFGBuilder took 305.02ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 109.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:56:40,593 INFO L158 Benchmark]: BuchiAutomizer took 543.31ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 96.0MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:56:40,593 INFO L158 Benchmark]: Witness Printer took 47.53ms. Allocated memory is still 167.8MB. Free memory was 95.7MB in the beginning and 94.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:56:40,596 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.70ms. Allocated memory is still 167.8MB. Free memory was 130.5MB in the beginning and 120.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.53ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 119.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.70ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 118.8MB in the end (delta: 939.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.02ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 109.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 543.31ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 96.0MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 47.53ms. Allocated memory is still 167.8MB. Free memory was 95.7MB in the beginning and 94.2MB in the end (delta: 1.5MB). 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 0.3s. 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: 16]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L12] int c, x; [L13] x = __VERIFIER_nondet_int() [L14] c = __VERIFIER_nondet_int() [L15] COND TRUE c == 0 VAL [c=0] Loop: [L16] COND TRUE x >= 0 [L17] x = x + c End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 16]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int c, x; [L13] x = __VERIFIER_nondet_int() [L14] c = __VERIFIER_nondet_int() [L15] COND TRUE c == 0 VAL [c=0] Loop: [L16] COND TRUE x >= 0 [L17] x = x + c End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 13:56:40,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4982ca63-6d7c-4617-ba49-977d48b39d1d/bin/uautomizer-verify-qhAvR1uOyd/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)