./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya --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 70e9192ed98be1c98a98d704655daf2c23fe89411c7a078d7ff71796ac189400 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:43:16,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:43:16,581 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 05:43:16,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:43:16,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:43:16,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:43:16,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:43:16,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:43:16,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:43:16,616 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:43:16,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:43:16,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:43:16,618 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:43:16,618 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 05:43:16,619 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 05:43:16,619 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 05:43:16,620 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 05:43:16,620 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 05:43:16,621 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 05:43:16,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:43:16,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 05:43:16,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:43:16,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:43:16,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 05:43:16,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 05:43:16,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 05:43:16,625 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:43:16,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:43:16,626 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 05:43:16,626 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:43:16,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:43:16,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:43:16,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:43:16,628 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:43:16,629 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 05:43:16,629 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_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70e9192ed98be1c98a98d704655daf2c23fe89411c7a078d7ff71796ac189400 [2023-11-29 05:43:16,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:43:16,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:43:16,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:43:16,853 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:43:16,853 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:43:16,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c [2023-11-29 05:43:19,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:43:19,720 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:43:19,720 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c [2023-11-29 05:43:19,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/data/65416fe12/1c562108db194f08b0b907ac645a394f/FLAGe62a702e5 [2023-11-29 05:43:19,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/data/65416fe12/1c562108db194f08b0b907ac645a394f [2023-11-29 05:43:19,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:43:19,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:43:19,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:43:19,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:43:19,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:43:19,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41cff9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19, skipping insertion in model container [2023-11-29 05:43:19,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,768 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:43:19,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:43:19,896 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:43:19,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:43:19,916 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:43:19,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19 WrapperNode [2023-11-29 05:43:19,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:43:19,918 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:43:19,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:43:19,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:43:19,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,945 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-11-29 05:43:19,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:43:19,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:43:19,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:43:19,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:43:19,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,964 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 05:43:19,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,971 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:43:19,972 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:43:19,972 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:43:19,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:43:19,973 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (1/1) ... [2023-11-29 05:43:19,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:19,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:20,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:20,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 05:43:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:43:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:43:20,110 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:43:20,112 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:43:20,167 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:43:20,178 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:43:20,178 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:43:20,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:43:20 BoogieIcfgContainer [2023-11-29 05:43:20,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:43:20,182 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 05:43:20,182 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 05:43:20,186 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 05:43:20,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:43:20,187 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 05:43:19" (1/3) ... [2023-11-29 05:43:20,188 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a10b9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:43:20, skipping insertion in model container [2023-11-29 05:43:20,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:43:20,188 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:19" (2/3) ... [2023-11-29 05:43:20,189 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a10b9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:43:20, skipping insertion in model container [2023-11-29 05:43:20,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:43:20,189 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:43:20" (3/3) ... [2023-11-29 05:43:20,190 INFO L332 chiAutomizerObserver]: Analyzing ICFG Lobnya-Boolean-Reordered-2.c [2023-11-29 05:43:20,243 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 05:43:20,243 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 05:43:20,243 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 05:43:20,243 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 05:43:20,243 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 05:43:20,244 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 05:43:20,244 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 05:43:20,244 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 05:43:20,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2023-11-29 05:43:20,261 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:43:20,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:43:20,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:43:20,265 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 05:43:20,265 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:43:20,266 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 05:43:20,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2023-11-29 05:43:20,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:43:20,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:43:20,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:43:20,267 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 05:43:20,268 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:43:20,276 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~b~0#1;havoc main_~x~0#1;havoc main_~b~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L18true assume !!(main_~x~0#1 >= -2147483647); 9#L22-2true [2023-11-29 05:43:20,277 INFO L750 eck$LassoCheckResult]: Loop: 9#L22-2true assume !!(0 != main_~b~0#1);havoc main_#t~nondet2#1;main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 5#L22true assume main_~x~0#1 >= 0;main_~b~0#1 := 1; 9#L22-2true [2023-11-29 05:43:20,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:20,283 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2023-11-29 05:43:20,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:20,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090556854] [2023-11-29 05:43:20,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:20,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:43:20,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:43:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:43:20,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:43:20,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:20,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1476, now seen corresponding path program 1 times [2023-11-29 05:43:20,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:20,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195085069] [2023-11-29 05:43:20,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:20,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:43:20,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:43:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:43:20,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:43:20,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:20,417 INFO L85 PathProgramCache]: Analyzing trace with hash 28695975, now seen corresponding path program 1 times [2023-11-29 05:43:20,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:20,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339673114] [2023-11-29 05:43:20,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:20,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:43:20,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:43:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:43:20,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:43:20,514 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:43:20,514 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:43:20,515 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:43:20,515 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:43:20,515 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:43:20,515 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:20,515 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:43:20,515 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:43:20,515 INFO L133 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered-2.c_Iteration1_Loop [2023-11-29 05:43:20,516 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:43:20,516 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:43:20,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:20,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:20,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:20,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:20,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:20,651 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:43:20,652 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:43:20,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:20,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:20,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:20,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 05:43:20,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:43:20,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:43:20,693 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:43:20,693 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:43:20,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:43:20,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:20,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:20,705 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:20,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 05:43:20,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:43:20,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:43:20,726 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:43:20,726 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:43:20,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 05:43:20,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:20,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:20,732 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:20,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 05:43:20,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:43:20,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:43:20,753 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:43:20,753 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0#1=1} Honda state: {ULTIMATE.start_main_~b~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:43:20,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 05:43:20,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:20,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:20,759 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:20,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 05:43:20,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:43:20,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:43:20,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:43:20,785 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:43:20,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 05:43:20,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:20,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:20,790 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:20,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 05:43:20,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:43:20,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:43:20,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-29 05:43:20,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:20,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:20,814 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:20,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 05:43:20,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:43:20,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:43:20,898 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:43:20,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-29 05:43:20,901 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:43:20,901 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:43:20,901 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:43:20,902 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:43:20,902 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:43:20,902 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:20,902 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:43:20,902 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:43:20,902 INFO L133 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered-2.c_Iteration1_Loop [2023-11-29 05:43:20,902 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:43:20,902 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:43:20,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:20,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:20,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:20,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:20,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:43:21,009 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:43:21,014 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:43:21,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:21,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:21,018 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:21,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 05:43:21,026 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 [2023-11-29 05:43:21,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:43:21,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:43:21,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:43:21,040 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-29 05:43:21,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:43:21,044 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-29 05:43:21,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:43:21,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:43:21,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 05:43:21,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:21,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:21,055 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:21,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 05:43:21,065 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 [2023-11-29 05:43:21,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:43:21,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:43:21,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:43:21,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:43:21,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:43:21,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:43:21,088 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:43:21,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 05:43:21,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:21,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:21,094 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:21,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 05:43:21,096 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 [2023-11-29 05:43:21,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:43:21,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:43:21,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:43:21,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:43:21,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:43:21,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:43:21,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:43:21,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 05:43:21,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:21,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:21,121 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:21,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 05:43:21,124 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 [2023-11-29 05:43:21,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:43:21,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:43:21,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:43:21,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:43:21,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:43:21,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:43:21,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:43:21,137 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:43:21,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 05:43:21,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:21,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:21,142 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:21,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 05:43:21,144 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 [2023-11-29 05:43:21,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:43:21,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:43:21,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:43:21,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:43:21,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:43:21,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:43:21,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:43:21,158 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:43:21,162 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:43:21,162 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 05:43:21,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:43:21,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:21,209 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:21,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 05:43:21,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:43:21,211 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:43:21,211 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:43:21,212 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 05:43:21,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-29 05:43:21,220 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:43:21,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:21,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:43:21,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:43:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:21,268 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:43:21,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:43:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:43:21,333 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 [2023-11-29 05:43:21,335 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-29 05:43:21,391 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 27 states and 35 transitions. Complement of second has 8 states. [2023-11-29 05:43:21,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-29 05:43:21,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-29 05:43:21,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2023-11-29 05:43:21,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-29 05:43:21,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:43:21,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-29 05:43:21,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:43:21,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-29 05:43:21,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:43:21,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2023-11-29 05:43:21,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:43:21,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 10 states and 13 transitions. [2023-11-29 05:43:21,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 05:43:21,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-29 05:43:21,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2023-11-29 05:43:21,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:43:21,409 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-29 05:43:21,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2023-11-29 05:43:21,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-29 05:43:21,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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) [2023-11-29 05:43:21,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-11-29 05:43:21,429 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-29 05:43:21,429 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-29 05:43:21,429 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 05:43:21,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-11-29 05:43:21,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:43:21,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:43:21,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:43:21,430 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 05:43:21,430 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:43:21,431 INFO L748 eck$LassoCheckResult]: Stem: 85#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 86#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_~x~0#1, main_~b~0#1;havoc main_~x~0#1;havoc main_~b~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_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 83#L18 assume !!(main_~x~0#1 >= -2147483647); 84#L22-2 assume !!(0 != main_~b~0#1);havoc main_#t~nondet2#1;main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 78#L22 [2023-11-29 05:43:21,431 INFO L750 eck$LassoCheckResult]: Loop: 78#L22 assume !(main_~x~0#1 >= 0);main_~b~0#1 := 0; 79#L22-2 assume !!(0 != main_~b~0#1);havoc main_#t~nondet2#1;main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 78#L22 [2023-11-29 05:43:21,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:21,431 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2023-11-29 05:43:21,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:21,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985316766] [2023-11-29 05:43:21,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:21,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:43:21,437 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:43:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:43:21,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:43:21,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:21,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1628, now seen corresponding path program 1 times [2023-11-29 05:43:21,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:21,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455276148] [2023-11-29 05:43:21,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:21,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:21,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:43:21,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:21,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455276148] [2023-11-29 05:43:21,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455276148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:21,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:21,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:43:21,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923033638] [2023-11-29 05:43:21,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:21,479 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 05:43:21,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:21,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:43:21,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:43:21,483 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 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) [2023-11-29 05:43:21,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:43:21,492 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2023-11-29 05:43:21,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-11-29 05:43:21,492 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 05:43:21,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2023-11-29 05:43:21,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 05:43:21,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 05:43:21,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 05:43:21,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:43:21,493 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:43:21,493 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:43:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:43:21,495 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:43:21,495 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 05:43:21,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:43:21,495 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 05:43:21,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 05:43:21,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 05:43:21 BoogieIcfgContainer [2023-11-29 05:43:21,502 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 05:43:21,502 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:43:21,502 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:43:21,502 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:43:21,503 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:43:20" (3/4) ... [2023-11-29 05:43:21,504 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:43:21,505 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:43:21,506 INFO L158 Benchmark]: Toolchain (without parser) took 1765.15ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 115.4MB in the beginning and 127.9MB in the end (delta: -12.5MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2023-11-29 05:43:21,506 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 125.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:43:21,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.49ms. Allocated memory is still 146.8MB. Free memory was 115.4MB in the beginning and 106.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:43:21,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.47ms. Allocated memory is still 146.8MB. Free memory was 106.0MB in the beginning and 104.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:43:21,508 INFO L158 Benchmark]: Boogie Preprocessor took 25.37ms. Allocated memory is still 146.8MB. Free memory was 104.7MB in the beginning and 103.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:43:21,508 INFO L158 Benchmark]: RCFGBuilder took 208.34ms. Allocated memory is still 146.8MB. Free memory was 103.1MB in the beginning and 94.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:43:21,509 INFO L158 Benchmark]: BuchiAutomizer took 1320.11ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 94.7MB in the beginning and 127.9MB in the end (delta: -33.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-11-29 05:43:21,509 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 184.5MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:43:21,512 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 125.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.49ms. Allocated memory is still 146.8MB. Free memory was 115.4MB in the beginning and 106.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.47ms. Allocated memory is still 146.8MB. Free memory was 106.0MB in the beginning and 104.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.37ms. Allocated memory is still 146.8MB. Free memory was 104.7MB in the beginning and 103.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 208.34ms. Allocated memory is still 146.8MB. Free memory was 103.1MB in the beginning and 94.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1320.11ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 94.7MB in the beginning and 127.9MB in the end (delta: -33.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 184.5MB. Free memory is still 127.9MB. 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). One deterministic module has affine ranking function x and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 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: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 18 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf137 smp100 tf109 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 05:43:21,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 05:43:21,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db24c0c-45c0-4e8f-adfa-62c87e317a8b/bin/uautomizer-verify-BQ2R08f2Ya/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 Result: TRUE