./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b 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_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 c3769a7b9199e4d3a1d3d7ebad63ad6175b11f31d08bb9cf3238c1849c9b4724 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:58:39,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:58:39,382 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 21:58:39,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:58:39,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:58:39,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:58:39,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:58:39,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:58:39,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:58:39,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:58:39,425 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:58:39,426 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 21:58:39,426 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 21:58:39,427 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 21:58:39,427 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 21:58:39,428 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 21:58:39,428 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 21:58:39,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:58:39,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 21:58:39,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:58:39,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:58:39,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 21:58:39,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 21:58:39,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 21:58:39,433 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:58:39,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:58:39,434 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 21:58:39,435 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:58:39,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:58:39,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:58:39,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:58:39,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:58:39,438 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 21:58:39,438 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_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3769a7b9199e4d3a1d3d7ebad63ad6175b11f31d08bb9cf3238c1849c9b4724 [2023-11-06 21:58:39,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:58:39,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:58:39,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:58:39,835 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:58:39,836 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:58:39,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-bwb/or-05.c [2023-11-06 21:58:42,983 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:58:43,200 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:58:43,200 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/sv-benchmarks/c/termination-bwb/or-05.c [2023-11-06 21:58:43,212 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/data/da5019d81/1cd93b190ee4400c9b731edcdddd27d4/FLAG7340d81c2 [2023-11-06 21:58:43,249 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/data/da5019d81/1cd93b190ee4400c9b731edcdddd27d4 [2023-11-06 21:58:43,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:58:43,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:58:43,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:43,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:58:43,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:58:43,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf931de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43, skipping insertion in model container [2023-11-06 21:58:43,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,283 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:58:43,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:43,431 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:58:43,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:43,454 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:43,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43 WrapperNode [2023-11-06 21:58:43,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:43,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:43,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:43,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:43,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,487 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-06 21:58:43,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:43,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:43,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:43,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:43,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:43,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:43,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:43,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:43,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (1/1) ... [2023-11-06 21:58:43,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:58:43,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:43,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:43,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:43,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:43,650 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:43,653 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:43,780 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:43,787 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:43,787 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:58:43,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:43 BoogieIcfgContainer [2023-11-06 21:58:43,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:43,790 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 21:58:43,790 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 21:58:43,794 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 21:58:43,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:58:43,795 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 09:58:43" (1/3) ... [2023-11-06 21:58:43,796 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d801e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:58:43, skipping insertion in model container [2023-11-06 21:58:43,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:58:43,796 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:43" (2/3) ... [2023-11-06 21:58:43,797 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d801e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:58:43, skipping insertion in model container [2023-11-06 21:58:43,797 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:58:43,797 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:43" (3/3) ... [2023-11-06 21:58:43,798 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-05.c [2023-11-06 21:58:43,876 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 21:58:43,876 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 21:58:43,876 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 21:58:43,877 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 21:58:43,877 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 21:58:43,877 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 21:58:43,877 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 21:58:43,877 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 21:58:43,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2023-11-06 21:58:43,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:58:43,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:58:43,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:58:43,900 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:58:43,900 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 21:58:43,901 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 21:58:43,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2023-11-06 21:58:43,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:58:43,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:58:43,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:58:43,903 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:58:43,903 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 21:58:43,909 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0; 5#L20-2true [2023-11-06 21:58:43,909 INFO L750 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~x~0#1 > 0); 11#L20true assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1; 5#L20-2true [2023-11-06 21:58:43,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 21:58:43,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:43,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142737300] [2023-11-06 21:58:43,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:43,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:43,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:58:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:58:44,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:44,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2023-11-06 21:58:44,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:44,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323231683] [2023-11-06 21:58:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:44,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:58:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:58:44,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:44,047 INFO L85 PathProgramCache]: Analyzing trace with hash 925812, now seen corresponding path program 1 times [2023-11-06 21:58:44,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:44,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434733714] [2023-11-06 21:58:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:44,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:58:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:58:44,157 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:58:44,158 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:58:44,158 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:58:44,158 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:58:44,159 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:58:44,159 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:58:44,159 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:58:44,159 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:58:44,159 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-05.c_Iteration1_Loop [2023-11-06 21:58:44,159 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:58:44,160 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:58:44,182 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:58:44,201 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:58:44,281 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:58:44,282 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:58:44,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:58:44,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:44,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:44,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 21:58:44,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:58:44,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:58:44,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:44,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:58:44,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:44,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:44,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:58:44,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:58:44,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 21:58:44,391 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:58:44,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:44,404 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:58:44,404 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:58:44,404 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:58:44,404 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:58:44,404 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:58:44,405 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:58:44,405 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:58:44,405 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:58:44,405 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-05.c_Iteration1_Loop [2023-11-06 21:58:44,405 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:58:44,405 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:58:44,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:58:44,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:58:44,500 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:58:44,505 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:58:44,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:58:44,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:44,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:44,517 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 [2023-11-06 21:58:44,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:58:44,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:58:44,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:58:44,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:58:44,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:58:44,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 21:58:44,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:58:44,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:58:44,543 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:58:44,548 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-06 21:58:44,548 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 21:58:44,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:58:44,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:44,588 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:44,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:58:44,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 21:58:44,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 21:58:44,597 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:58:44,598 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 [] [2023-11-06 21:58:44,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:44,610 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 21:58:44,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:44,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:58:44,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:44,660 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:58:44,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:44,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:44,714 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 [2023-11-06 21:58:44,716 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-06 21:58:44,768 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 29 states and 43 transitions. Complement of second has 8 states. [2023-11-06 21:58:44,771 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 [2023-11-06 21:58:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-06 21:58:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2023-11-06 21:58:44,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-06 21:58:44,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:58:44,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-06 21:58:44,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:58:44,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-06 21:58:44,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:58:44,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 43 transitions. [2023-11-06 21:58:44,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:58:44,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 14 states and 21 transitions. [2023-11-06 21:58:44,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-06 21:58:44,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-06 21:58:44,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2023-11-06 21:58:44,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:58:44,801 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-06 21:58:44,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2023-11-06 21:58:44,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2023-11-06 21:58:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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) [2023-11-06 21:58:44,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2023-11-06 21:58:44,829 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-11-06 21:58:44,829 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-11-06 21:58:44,829 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 21:58:44,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2023-11-06 21:58:44,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:58:44,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:58:44,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:58:44,831 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 21:58:44,831 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 21:58:44,831 INFO L748 eck$LassoCheckResult]: Stem: 87#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 88#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_~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;main_~y~0#1 := 0; 89#L20-2 assume !!(main_~x~0#1 > 0); 83#L20 assume 1 == main_~y~0#1; 84#L21 [2023-11-06 21:58:44,832 INFO L750 eck$LassoCheckResult]: Loop: 84#L21 assume 0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1;main_#t~nondet1#1 := 1 + main_~y~0#1; 85#L21-4 main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1; 79#L20-2 assume !!(main_~x~0#1 > 0); 80#L20 assume 1 == main_~y~0#1; 84#L21 [2023-11-06 21:58:44,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:44,832 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-06 21:58:44,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:44,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118751913] [2023-11-06 21:58:44,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:44,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:44,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:44,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118751913] [2023-11-06 21:58:44,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118751913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:44,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:44,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:44,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247281987] [2023-11-06 21:58:44,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:44,880 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 21:58:44,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:44,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1455309, now seen corresponding path program 1 times [2023-11-06 21:58:44,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:44,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674615542] [2023-11-06 21:58:44,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:44,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:44,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:44,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:44,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674615542] [2023-11-06 21:58:44,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674615542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:44,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:44,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:58:44,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610856519] [2023-11-06 21:58:44,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:44,907 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 21:58:44,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:44,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:44,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:44,911 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-06 21:58:44,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:44,930 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2023-11-06 21:58:44,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2023-11-06 21:58:44,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 21:58:44,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 19 transitions. [2023-11-06 21:58:44,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 21:58:44,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-06 21:58:44,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2023-11-06 21:58:44,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:58:44,933 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2023-11-06 21:58:44,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2023-11-06 21:58:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-11-06 21:58:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 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) [2023-11-06 21:58:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2023-11-06 21:58:44,936 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-11-06 21:58:44,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:44,937 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-11-06 21:58:44,937 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 21:58:44,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2023-11-06 21:58:44,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 21:58:44,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:58:44,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:58:44,939 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-11-06 21:58:44,939 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-06 21:58:44,939 INFO L748 eck$LassoCheckResult]: Stem: 121#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 0; 124#L20-2 assume !!(main_~x~0#1 > 0); 116#L20 assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1; 115#L20-2 assume !!(main_~x~0#1 > 0); 117#L20 assume 1 == main_~y~0#1; 118#L21 [2023-11-06 21:58:44,939 INFO L750 eck$LassoCheckResult]: Loop: 118#L21 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 120#L21-2 assume !(0 == 1 + main_~y~0#1);assume (main_~y~0#1 < 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet1#1 >= 1 + main_~y~0#1;assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~nondet1#1 >= main_~y~0#1;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet1#1 <= main_~y~0#1 + (1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet1#1 < 0;assume main_#t~nondet1#1 <= 2147483647; 123#L21-4 main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1; 125#L20-2 assume !!(main_~x~0#1 > 0); 126#L20 assume 1 == main_~y~0#1; 118#L21 [2023-11-06 21:58:44,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:44,940 INFO L85 PathProgramCache]: Analyzing trace with hash 889705687, now seen corresponding path program 1 times [2023-11-06 21:58:44,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:44,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158685881] [2023-11-06 21:58:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:44,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:58:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:58:44,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:44,955 INFO L85 PathProgramCache]: Analyzing trace with hash 46916375, now seen corresponding path program 1 times [2023-11-06 21:58:44,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:44,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352620944] [2023-11-06 21:58:44,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:44,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:58:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:58:44,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:44,973 INFO L85 PathProgramCache]: Analyzing trace with hash 179676161, now seen corresponding path program 1 times [2023-11-06 21:58:44,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:44,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296499515] [2023-11-06 21:58:44,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:44,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:58:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:44,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:58:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:45,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:58:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:45,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 09:58:45 BoogieIcfgContainer [2023-11-06 21:58:45,191 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 21:58:45,192 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:58:45,193 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:58:45,193 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:58:45,194 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:43" (3/4) ... [2023-11-06 21:58:45,198 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 21:58:45,202 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:58:45,208 INFO L158 Benchmark]: Toolchain (without parser) took 1948.93ms. Allocated memory is still 174.1MB. Free memory was 145.9MB in the beginning and 82.3MB in the end (delta: 63.6MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2023-11-06 21:58:45,209 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 130.0MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:45,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.96ms. Allocated memory is still 174.1MB. Free memory was 145.7MB in the beginning and 140.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-11-06 21:58:45,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.32ms. Allocated memory is still 174.1MB. Free memory was 140.0MB in the beginning and 138.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:45,212 INFO L158 Benchmark]: Boogie Preprocessor took 20.87ms. Allocated memory is still 174.1MB. Free memory was 138.5MB in the beginning and 137.7MB in the end (delta: 844.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:45,213 INFO L158 Benchmark]: RCFGBuilder took 279.69ms. Allocated memory is still 174.1MB. Free memory was 136.7MB in the beginning and 143.5MB in the end (delta: -6.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-11-06 21:58:45,216 INFO L158 Benchmark]: BuchiAutomizer took 1401.08ms. Allocated memory is still 174.1MB. Free memory was 143.5MB in the beginning and 82.3MB in the end (delta: 61.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-06 21:58:45,217 INFO L158 Benchmark]: Witness Printer took 10.48ms. Allocated memory is still 174.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:45,224 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 130.0MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.96ms. Allocated memory is still 174.1MB. Free memory was 145.7MB in the beginning and 140.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.32ms. Allocated memory is still 174.1MB. Free memory was 140.0MB in the beginning and 138.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.87ms. Allocated memory is still 174.1MB. Free memory was 138.5MB in the beginning and 137.7MB in the end (delta: 844.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.69ms. Allocated memory is still 174.1MB. Free memory was 136.7MB in the beginning and 143.5MB in the end (delta: -6.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1401.08ms. Allocated memory is still 174.1MB. Free memory was 143.5MB in the beginning and 82.3MB in the end (delta: 61.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 10.48ms. Allocated memory is still 174.1MB. Free memory is still 82.3MB. 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 x and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:2. 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 0. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 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, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf137 smp100 tf109 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 91ms VariablesStem: 0 VariablesLoop: 2 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) [21] (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_~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;main_~y~0#1 := 0;" "assume !!(main_~x~0#1 > 0);" "assume !(1 == main_~y~0#1);main_~y~0#1 := 1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume !!(main_~x~0#1 > 0);" "assume 1 == main_~y~0#1;" 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~nondet1#1 >= 1 + main_~y~0#1;assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 < 0) || main_#t~nondet1#1 >= main_~y~0#1;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet1#1 <= main_~y~0#1 + (1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet1#1 < 0;assume main_#t~nondet1#1 <= 2147483647;" "main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~y~0#1;" "assume !!(main_~x~0#1 > 0);" "assume 1 == main_~y~0#1;" RESULT: Ultimate could not prove your program: unable to determine termination [2023-11-06 21:58:45,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:45,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/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_1e5e5282-dae9-4e8c-98b7-8751daf8033d/bin/uautomizer-verify-WvqO1wxjHP/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