./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Madrid.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_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/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_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Madrid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/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_83e32793-511a-4e7e-9a37-75c19dd62128/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 a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:04:45,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:04:45,200 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 23:04:45,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:04:45,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:04:45,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:04:45,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:04:45,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:04:45,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:04:45,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:04:45,273 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:04:45,273 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 23:04:45,274 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 23:04:45,276 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 23:04:45,276 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 23:04:45,277 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 23:04:45,277 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 23:04:45,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:04:45,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 23:04:45,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:04:45,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:04:45,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 23:04:45,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 23:04:45,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 23:04:45,282 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:04:45,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:04:45,283 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 23:04:45,284 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:04:45,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:04:45,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:04:45,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:04:45,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:04:45,288 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 23:04:45,288 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_83e32793-511a-4e7e-9a37-75c19dd62128/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 [2023-11-06 23:04:45,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:04:45,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:04:45,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:04:45,675 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:04:45,675 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:04:45,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted/Madrid.c [2023-11-06 23:04:49,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:04:49,459 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:04:49,460 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/sv-benchmarks/c/termination-crafted/Madrid.c [2023-11-06 23:04:49,470 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/data/03a9a4edd/3bd254a711cc43dbbf52acbb2663d251/FLAGf1be9ce40 [2023-11-06 23:04:49,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/data/03a9a4edd/3bd254a711cc43dbbf52acbb2663d251 [2023-11-06 23:04:49,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:04:49,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:04:49,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:04:49,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:04:49,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:04:49,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de6087e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49, skipping insertion in model container [2023-11-06 23:04:49,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,529 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:04:49,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:04:49,692 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:04:49,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:04:49,716 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:04:49,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49 WrapperNode [2023-11-06 23:04:49,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:04:49,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:04:49,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:04:49,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:04:49,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,754 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2023-11-06 23:04:49,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:04:49,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:04:49,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:04:49,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:04:49,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:04:49,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:04:49,780 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:04:49,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:04:49,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (1/1) ... [2023-11-06 23:04:49,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:04:49,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:04:49,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:04:49,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 23:04:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:04:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:04:49,986 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:04:49,989 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:04:50,062 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:04:50,071 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:04:50,071 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:04:50,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:04:50 BoogieIcfgContainer [2023-11-06 23:04:50,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:04:50,076 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 23:04:50,076 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 23:04:50,081 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 23:04:50,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:04:50,082 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 11:04:49" (1/3) ... [2023-11-06 23:04:50,084 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f7fccdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:04:50, skipping insertion in model container [2023-11-06 23:04:50,085 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:04:50,085 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:04:49" (2/3) ... [2023-11-06 23:04:50,088 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f7fccdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:04:50, skipping insertion in model container [2023-11-06 23:04:50,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:04:50,088 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:04:50" (3/3) ... [2023-11-06 23:04:50,099 INFO L332 chiAutomizerObserver]: Analyzing ICFG Madrid.c [2023-11-06 23:04:50,197 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 23:04:50,197 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 23:04:50,197 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 23:04:50,198 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 23:04:50,198 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 23:04:50,198 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 23:04:50,200 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 23:04:50,201 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 23:04:50,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 23:04:50,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 23:04:50,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:04:50,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:04:50,236 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:04:50,237 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 23:04:50,237 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 23:04:50,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 23:04:50,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 23:04:50,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:04:50,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:04:50,239 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:04:50,239 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 23:04:50,249 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := 7; 6#L14-2true [2023-11-06 23:04:50,249 INFO L750 eck$LassoCheckResult]: Loop: 6#L14-2true assume !false;main_~x~0#1 := 2; 6#L14-2true [2023-11-06 23:04:50,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:50,264 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 23:04:50,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:50,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569487502] [2023-11-06 23:04:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:50,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:04:50,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:04:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:04:50,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:04:50,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:50,404 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-11-06 23:04:50,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:50,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422336110] [2023-11-06 23:04:50,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:50,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:04:50,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:04:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:04:50,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:04:50,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:50,419 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-06 23:04:50,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:50,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114270656] [2023-11-06 23:04:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:50,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:04:50,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:04:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:04:50,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:04:50,490 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 23:04:50,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 23:04:50,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 23:04:50,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 23:04:50,492 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 23:04:50,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:04:50,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 23:04:50,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 23:04:50,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: Madrid.c_Iteration1_Lasso [2023-11-06 23:04:50,493 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 23:04:50,493 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 23:04:50,518 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 23:04:50,537 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 23:04:50,543 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 23:04:50,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 23:04:50,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 23:04:50,642 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 23:04:50,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:04:50,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:04:50,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:04:50,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 23:04:50,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 23:04:50,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:04:50,686 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 23:04:50,687 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: [] [2023-11-06 23:04:50,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:50,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:04:50,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:04:50,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:04:50,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 23:04:50,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:04:50,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 23:04:50,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 23:04:50,750 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: [] [2023-11-06 23:04:50,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:50,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:04:50,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:04:50,763 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:04:50,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 23:04:50,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 23:04:50,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:04:50,805 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 23:04:50,805 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 23:04:50,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:50,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:04:50,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:04:50,822 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:04:50,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 23:04:50,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 23:04:50,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:04:50,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:50,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:04:50,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:04:50,890 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:04:50,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 23:04:50,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:04:50,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 23:04:50,950 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 23:04:50,950 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=7} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=2}, {ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=-8}] Lambdas: [0, 8, 0] Nus: [0, 1] [2023-11-06 23:04:50,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:50,965 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-06 23:04:50,966 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-06 23:04:50,968 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-06 23:04:50,968 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-06 23:04:50,968 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-06 23:04:50,970 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-06 23:04:50,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 11:04:50 BoogieIcfgContainer [2023-11-06 23:04:50,983 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 23:04:50,984 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:04:50,984 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:04:50,984 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:04:50,985 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:04:50" (3/4) ... [2023-11-06 23:04:50,987 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 23:04:51,052 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:04:51,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:04:51,058 INFO L158 Benchmark]: Toolchain (without parser) took 1561.15ms. Allocated memory is still 144.7MB. Free memory was 111.8MB in the beginning and 62.8MB in the end (delta: 49.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-06 23:04:51,060 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:04:51,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.05ms. Allocated memory is still 144.7MB. Free memory was 111.8MB in the beginning and 102.6MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:04:51,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.76ms. Allocated memory is still 144.7MB. Free memory was 102.6MB in the beginning and 101.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:04:51,063 INFO L158 Benchmark]: Boogie Preprocessor took 23.45ms. Allocated memory is still 144.7MB. Free memory was 101.3MB in the beginning and 100.5MB in the end (delta: 873.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:04:51,064 INFO L158 Benchmark]: RCFGBuilder took 294.60ms. Allocated memory is still 144.7MB. Free memory was 100.1MB in the beginning and 92.5MB in the end (delta: 7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:04:51,068 INFO L158 Benchmark]: BuchiAutomizer took 907.33ms. Allocated memory is still 144.7MB. Free memory was 92.1MB in the beginning and 64.5MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-06 23:04:51,069 INFO L158 Benchmark]: Witness Printer took 69.92ms. Allocated memory is still 144.7MB. Free memory was 64.1MB in the beginning and 62.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:04:51,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.05ms. Allocated memory is still 144.7MB. Free memory was 111.8MB in the beginning and 102.6MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.76ms. Allocated memory is still 144.7MB. Free memory was 102.6MB in the beginning and 101.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.45ms. Allocated memory is still 144.7MB. Free memory was 101.3MB in the beginning and 100.5MB in the end (delta: 873.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.60ms. Allocated memory is still 144.7MB. Free memory was 100.1MB in the beginning and 92.5MB in the end (delta: 7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 907.33ms. Allocated memory is still 144.7MB. Free memory was 92.1MB in the beginning and 64.5MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 69.92ms. Allocated memory is still 144.7MB. Free memory was 64.1MB in the beginning and 62.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital6 mio100 ax333 hnf100 lsp30 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq233 hnf100 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2023-11-06 23:04:51,102 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-06 23:04:51,102 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-06 23:04:51,102 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-06 23:04:51,103 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-06 23:04:51,107 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-06 23:04:51,108 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-06 23:04:51,108 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-06 23:04:51,109 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-06 23:04:51,109 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-06 23:04:51,109 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-06 23:04:51,110 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-06 23:04:51,110 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated Nontermination argument in form of an infinite execution State at position 0 is {x=0, NULL=1, NULL=0, \result=0} State at position 1 is {x=7, NULL=1, NULL=0, \result=0} For i>1, the state at position i is {x=7 + sum_{k=0}^i 2*0^k + 1*8^k + -8*0^k + -8*k*8^(k-1), NULL=1 + sum_{k=0}^i 0, NULL=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [0, 8, 0] Mus: [0, 1] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = 7 Loop: [L14] COND TRUE \read(true) [L15] x = 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 23:04:51,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e32793-511a-4e7e-9a37-75c19dd62128/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)