./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme --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 c5de9087a921e8aad95bc80b29f24bf9506596da18bf9b4640846346a82bb2ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:04,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:04,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 10:45:04,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:04,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:04,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:04,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:04,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:04,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:45:04,544 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:45:04,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:04,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:04,546 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:04,547 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:45:04,547 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:45:04,548 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:45:04,548 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:45:04,549 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:45:04,549 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:45:04,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:04,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:45:04,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:04,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:04,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:45:04,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:45:04,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:45:04,554 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:45:04,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:04,555 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:45:04,555 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:04,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:04,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:04,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:04,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:04,558 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:45:04,558 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5de9087a921e8aad95bc80b29f24bf9506596da18bf9b4640846346a82bb2ae [2023-11-26 10:45:04,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:04,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:04,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:04,886 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:04,887 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:04,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-bwb/or-04.c [2023-11-26 10:45:07,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:08,250 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:08,251 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/sv-benchmarks/c/termination-bwb/or-04.c [2023-11-26 10:45:08,258 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/data/072f09075/01a9dcb7723340efa7860204a8e34ce0/FLAG9c42a4c1f [2023-11-26 10:45:08,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/data/072f09075/01a9dcb7723340efa7860204a8e34ce0 [2023-11-26 10:45:08,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:08,286 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:08,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:08,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:08,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:08,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35348498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08, skipping insertion in model container [2023-11-26 10:45:08,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,318 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:08,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:08,511 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:08,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:08,536 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:08,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08 WrapperNode [2023-11-26 10:45:08,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:08,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:08,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:08,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:08,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,569 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-26 10:45:08,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:08,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:08,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:08,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:08,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,589 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 10:45:08,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:08,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:08,601 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:08,601 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:08,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (1/1) ... [2023-11-26 10:45:08,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:08,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:08,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:08,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:08,734 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:08,737 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:45:08,846 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:45:08,855 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:45:08,856 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:45:08,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:08 BoogieIcfgContainer [2023-11-26 10:45:08,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:45:08,859 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:45:08,859 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:45:08,864 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:45:08,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:08,865 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:45:08" (1/3) ... [2023-11-26 10:45:08,866 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4613355d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:45:08, skipping insertion in model container [2023-11-26 10:45:08,866 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:08,867 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:08" (2/3) ... [2023-11-26 10:45:08,867 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4613355d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:45:08, skipping insertion in model container [2023-11-26 10:45:08,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:08,867 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:08" (3/3) ... [2023-11-26 10:45:08,869 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-04.c [2023-11-26 10:45:08,926 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:45:08,927 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:45:08,927 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:45:08,927 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:45:08,927 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:45:08,928 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:45:08,928 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:45:08,928 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:45:08,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2023-11-26 10:45:08,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-26 10:45:08,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:08,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:08,952 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:45:08,953 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:45:08,953 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:45:08,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2023-11-26 10:45:08,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-26 10:45:08,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:08,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:08,955 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:45:08,956 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:45:08,962 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L20-2true [2023-11-26 10:45:08,962 INFO L750 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 9#L21-2true assume !(0 != main_~y~0#1); 6#L20-2true [2023-11-26 10:45:08,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:08,967 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 10:45:08,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:08,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056890312] [2023-11-26 10:45:08,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:08,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:09,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:09,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:09,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:09,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2023-11-26 10:45:09,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:09,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992874044] [2023-11-26 10:45:09,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:09,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:09,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:09,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:09,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992874044] [2023-11-26 10:45:09,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992874044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:09,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:09,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:45:09,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459780678] [2023-11-26 10:45:09,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:09,213 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 10:45:09,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:09,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:09,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:09,260 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-26 10:45:09,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:09,342 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2023-11-26 10:45:09,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2023-11-26 10:45:09,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 10:45:09,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2023-11-26 10:45:09,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-26 10:45:09,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-26 10:45:09,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2023-11-26 10:45:09,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:09,355 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-26 10:45:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2023-11-26 10:45:09,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-26 10:45:09,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 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) [2023-11-26 10:45:09,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2023-11-26 10:45:09,380 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-26 10:45:09,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:09,385 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-26 10:45:09,385 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:45:09,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2023-11-26 10:45:09,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 10:45:09,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:09,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:09,387 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:45:09,387 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:09,387 INFO L748 eck$LassoCheckResult]: Stem: 40#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 38#L20-2 [2023-11-26 10:45:09,388 INFO L750 eck$LassoCheckResult]: Loop: 38#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 39#L21-2 assume !!(0 != main_~y~0#1); 37#L21 assume main_~y~0#1 > 0; 35#L22 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 36#L22-2 assume !(0 == 1 + main_~y~0#1);assume (main_~y~0#1 < 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 >= 1 + main_~y~0#1;assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 >= main_~y~0#1;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1 + (1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 42#L22-4 main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 43#L21-2 assume !(0 != main_~y~0#1); 38#L20-2 [2023-11-26 10:45:09,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:09,388 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-26 10:45:09,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:09,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807929017] [2023-11-26 10:45:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:09,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:09,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:09,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:09,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:09,400 INFO L85 PathProgramCache]: Analyzing trace with hash -784860095, now seen corresponding path program 1 times [2023-11-26 10:45:09,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:09,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968515036] [2023-11-26 10:45:09,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:09,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:09,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:09,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:09,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:09,449 INFO L85 PathProgramCache]: Analyzing trace with hash 761436735, now seen corresponding path program 1 times [2023-11-26 10:45:09,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:09,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594447048] [2023-11-26 10:45:09,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:09,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:09,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:09,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:09,603 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:09,604 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:09,604 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:09,604 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:09,604 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:45:09,604 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:09,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:09,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:09,605 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2023-11-26 10:45:09,605 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:09,605 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:09,629 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:09,722 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:09,723 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:45:09,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:09,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:09,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:09,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:09,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:09,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 10:45:09,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:09,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:09,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:09,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:09,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 10:45:09,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:45:09,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:09,829 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:45:09,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:09,839 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:09,839 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:09,839 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:09,839 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:09,839 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:45:09,839 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:09,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:09,840 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:09,840 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2023-11-26 10:45:09,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:09,840 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:09,842 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:09,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:09,957 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:45:09,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:09,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:09,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:09,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:09,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 10:45:09,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:09,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:09,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:09,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:09,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:09,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:09,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:10,003 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:45:10,009 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 10:45:10,009 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:45:10,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:10,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:10,039 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:10,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 10:45:10,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:45:10,042 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:45:10,043 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:45:10,043 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-26 10:45:10,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:10,055 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:45:10,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:10,101 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:10,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:10,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:10,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:45:10,209 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:10,210 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-26 10:45:10,304 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) Result 28 states and 36 transitions. Complement of second has 6 states. [2023-11-26 10:45:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:10,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-26 10:45:10,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-11-26 10:45:10,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 7 letters. [2023-11-26 10:45:10,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:10,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 7 letters. [2023-11-26 10:45:10,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:10,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 14 letters. [2023-11-26 10:45:10,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:10,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2023-11-26 10:45:10,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-26 10:45:10,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 36 transitions. [2023-11-26 10:45:10,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-26 10:45:10,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2023-11-26 10:45:10,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 36 transitions. [2023-11-26 10:45:10,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:45:10,316 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-11-26 10:45:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 36 transitions. [2023-11-26 10:45:10,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2023-11-26 10:45:10,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 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) [2023-11-26 10:45:10,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2023-11-26 10:45:10,319 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-11-26 10:45:10,319 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-11-26 10:45:10,319 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 10:45:10,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2023-11-26 10:45:10,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:45:10,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:10,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:10,321 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-26 10:45:10,321 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-26 10:45:10,321 INFO L748 eck$LassoCheckResult]: Stem: 133#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 134#L-1 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_#t~nondet2#1, main_~y~0#1, main_~x~0#1;havoc main_~y~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_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 127#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 129#L21-2 assume !!(0 != main_~y~0#1); 131#L21 assume main_~y~0#1 > 0; 123#L22 [2023-11-26 10:45:10,322 INFO L750 eck$LassoCheckResult]: Loop: 123#L22 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 124#L22-2 assume !(0 == 1 + main_~y~0#1);assume (main_~y~0#1 < 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 >= 1 + main_~y~0#1;assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 >= main_~y~0#1;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1 + (1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 137#L22-4 main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 135#L21-2 assume !!(0 != main_~y~0#1); 136#L21 assume main_~y~0#1 > 0; 123#L22 [2023-11-26 10:45:10,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:10,322 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2023-11-26 10:45:10,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:10,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443459326] [2023-11-26 10:45:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:10,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:10,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:10,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:10,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:10,333 INFO L85 PathProgramCache]: Analyzing trace with hash 55505120, now seen corresponding path program 1 times [2023-11-26 10:45:10,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:10,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79510137] [2023-11-26 10:45:10,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:10,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:10,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:10,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:10,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:10,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2129702390, now seen corresponding path program 1 times [2023-11-26 10:45:10,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:10,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773324184] [2023-11-26 10:45:10,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:10,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:10,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:10,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:10,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:10,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:45:10 BoogieIcfgContainer [2023-11-26 10:45:10,659 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:45:10,660 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:45:10,660 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:45:10,660 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:45:10,661 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:08" (3/4) ... [2023-11-26 10:45:10,663 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:45:10,665 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:45:10,670 INFO L158 Benchmark]: Toolchain (without parser) took 2379.48ms. Allocated memory is still 157.3MB. Free memory was 127.2MB in the beginning and 98.1MB in the end (delta: 29.1MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2023-11-26 10:45:10,672 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory was 63.1MB in the beginning and 63.0MB in the end (delta: 75.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:10,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.86ms. Allocated memory is still 157.3MB. Free memory was 127.2MB in the beginning and 117.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:45:10,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.22ms. Allocated memory is still 157.3MB. Free memory was 117.7MB in the beginning and 116.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:45:10,678 INFO L158 Benchmark]: Boogie Preprocessor took 29.14ms. Allocated memory is still 157.3MB. Free memory was 116.1MB in the beginning and 114.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:45:10,679 INFO L158 Benchmark]: RCFGBuilder took 257.50ms. Allocated memory is still 157.3MB. Free memory was 114.6MB in the beginning and 105.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:45:10,682 INFO L158 Benchmark]: BuchiAutomizer took 1800.37ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 99.0MB in the end (delta: 6.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-11-26 10:45:10,682 INFO L158 Benchmark]: Witness Printer took 4.94ms. Allocated memory is still 157.3MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:10,689 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory was 63.1MB in the beginning and 63.0MB in the end (delta: 75.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.86ms. Allocated memory is still 157.3MB. Free memory was 127.2MB in the beginning and 117.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.22ms. Allocated memory is still 157.3MB. Free memory was 117.7MB in the beginning and 116.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.14ms. Allocated memory is still 157.3MB. Free memory was 116.1MB in the beginning and 114.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 257.50ms. Allocated memory is still 157.3MB. Free memory was 114.6MB in the beginning and 105.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1800.37ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 99.0MB in the end (delta: 6.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 4.94ms. Allocated memory is still 157.3MB. Free memory is still 98.1MB. 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 Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 15 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq144 hnf94 smp86 dnf100 smp100 tf106 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 85ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: y|(y+1) [22] (Reason bitwiseOr) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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_#t~nondet2#1, main_~y~0#1, main_~x~0#1;havoc main_~y~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_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);" "assume !!(0 != main_~y~0#1);" "assume main_~y~0#1 > 0;" Loop: "assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1);" "assume !(0 == 1 + main_~y~0#1);assume (main_~y~0#1 < 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 >= 1 + main_~y~0#1;assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 >= main_~y~0#1;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1 + (1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647;" "main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_~x~0#1 - main_~y~0#1;" "assume !!(0 != main_~y~0#1);" "assume main_~y~0#1 > 0;" RESULT: Ultimate could not prove your program: unable to determine termination [2023-11-26 10:45:10,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:10,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4850406-98d8-4ba1-b21a-e41a235437f7/bin/uautomizer-verify-VRDe98Ueme/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN