./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Waldkirch.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Waldkirch.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0d07943f594c0a86ad3f09c064026eaa390bfc50048ddd9265cfeaf428144657 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:22:10,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:22:10,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 14:22:10,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:22:10,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:22:10,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:22:10,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:22:10,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:22:10,241 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:22:10,241 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:22:10,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:22:10,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:22:10,243 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:22:10,244 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 14:22:10,244 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 14:22:10,244 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 14:22:10,244 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 14:22:10,244 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 14:22:10,244 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 14:22:10,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:22:10,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 14:22:10,245 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:22:10,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:22:10,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 14:22:10,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 14:22:10,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 14:22:10,245 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:22:10,246 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:22:10,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:22:10,246 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 14:22:10,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:22:10,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:22:10,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:22:10,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:22:10,249 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:22:10,250 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 14:22:10,250 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d07943f594c0a86ad3f09c064026eaa390bfc50048ddd9265cfeaf428144657 [2024-11-13 14:22:10,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:22:10,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:22:10,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:22:10,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:22:10,660 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:22:10,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-crafted/Waldkirch.c Unable to find full path for "g++" [2024-11-13 14:22:12,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:22:13,270 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:22:13,271 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/sv-benchmarks/c/termination-crafted/Waldkirch.c [2024-11-13 14:22:13,281 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/data/2a03b07d9/98ba4ef94d88449cba21647dfff39bdd/FLAG4cacb2379 [2024-11-13 14:22:13,300 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/data/2a03b07d9/98ba4ef94d88449cba21647dfff39bdd [2024-11-13 14:22:13,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:22:13,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:22:13,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:22:13,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:22:13,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:22:13,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fce1629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13, skipping insertion in model container [2024-11-13 14:22:13,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:22:13,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:22:13,552 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:22:13,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:22:13,583 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:22:13,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13 WrapperNode [2024-11-13 14:22:13,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:22:13,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:22:13,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:22:13,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:22:13,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,617 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2024-11-13 14:22:13,618 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:22:13,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:22:13,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:22:13,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:22:13,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,638 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 14:22:13,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,642 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:22:13,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:22:13,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:22:13,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:22:13,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (1/1) ... [2024-11-13 14:22:13,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:13,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:13,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:13,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 14:22:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:22:13,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:22:13,849 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:22:13,851 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:22:13,905 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-13 14:22:13,905 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:22:13,916 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:22:13,916 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:22:13,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:13 BoogieIcfgContainer [2024-11-13 14:22:13,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:22:13,918 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 14:22:13,918 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 14:22:13,924 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 14:22:13,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:22:13,925 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 02:22:13" (1/3) ... [2024-11-13 14:22:13,927 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67804dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:22:13, skipping insertion in model container [2024-11-13 14:22:13,927 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:22:13,927 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:13" (2/3) ... [2024-11-13 14:22:13,927 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67804dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:22:13, skipping insertion in model container [2024-11-13 14:22:13,927 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:22:13,929 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:13" (3/3) ... [2024-11-13 14:22:13,931 INFO L333 chiAutomizerObserver]: Analyzing ICFG Waldkirch.c [2024-11-13 14:22:14,005 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 14:22:14,005 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 14:22:14,005 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 14:22:14,005 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 14:22:14,005 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 14:22:14,006 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 14:22:14,006 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 14:22:14,006 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 14:22:14,012 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) [2024-11-13 14:22:14,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 14:22:14,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:22:14,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:22:14,037 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:22:14,037 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 14:22:14,038 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 14:22:14,038 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) [2024-11-13 14:22:14,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 14:22:14,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:22:14,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:22:14,040 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:22:14,040 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 14:22:14,055 INFO L745 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_#t~nondet0#1, main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L14-2true [2024-11-13 14:22:14,055 INFO L747 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - 1; 6#L14-2true [2024-11-13 14:22:14,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:14,064 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 14:22:14,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:14,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415722482] [2024-11-13 14:22:14,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:14,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:14,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:22:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:14,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:22:14,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:14,214 INFO L85 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2024-11-13 14:22:14,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:14,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493265677] [2024-11-13 14:22:14,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:14,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:14,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:22:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:14,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:22:14,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:14,246 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-11-13 14:22:14,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:14,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340322176] [2024-11-13 14:22:14,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:14,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:14,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:22:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:14,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:22:14,338 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:22:14,339 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:22:14,340 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:22:14,340 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:22:14,340 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 14:22:14,340 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:14,341 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:22:14,341 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:22:14,341 INFO L132 ssoRankerPreferences]: Filename of dumped script: Waldkirch.c_Iteration1_Loop [2024-11-13 14:22:14,341 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:22:14,342 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:22:14,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:22:14,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:22:14,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:22:14,498 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:22:14,499 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 14:22:14,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:14,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:14,508 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:14,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 14:22:14,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:22:14,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:22:14,548 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:22:14,548 INFO L401 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: [] [2024-11-13 14:22:14,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-13 14:22:14,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:14,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:14,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:14,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 14:22:14,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:22:14,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:22:14,610 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:22:14,610 INFO L401 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: [] [2024-11-13 14:22:14,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 14:22:14,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:14,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:14,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:14,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 14:22:14,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:22:14,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:22:14,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-13 14:22:14,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:14,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:14,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:14,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 14:22:14,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 14:22:14,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:22:14,750 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 14:22:14,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-13 14:22:14,756 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:22:14,756 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:22:14,756 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:22:14,756 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:22:14,756 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 14:22:14,756 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:14,756 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:22:14,756 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:22:14,756 INFO L132 ssoRankerPreferences]: Filename of dumped script: Waldkirch.c_Iteration1_Loop [2024-11-13 14:22:14,756 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:22:14,756 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:22:14,759 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:22:14,769 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:22:14,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:22:14,884 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:22:14,889 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 14:22:14,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:14,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:14,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:14,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 14:22:14,900 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 [2024-11-13 14:22:14,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:22:14,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:22:14,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:22:14,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:22:14,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 14:22:14,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 14:22:14,957 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:22:14,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 14:22:14,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:14,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:14,991 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:14,995 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 [2024-11-13 14:22:14,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 14:22:15,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:22:15,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:22:15,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:22:15,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:22:15,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 14:22:15,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 14:22:15,027 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:22:15,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 14:22:15,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:15,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:15,052 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:15,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 14:22:15,060 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 [2024-11-13 14:22:15,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:22:15,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:22:15,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:22:15,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:22:15,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:22:15,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:22:15,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:22:15,094 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 14:22:15,099 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 14:22:15,102 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 14:22:15,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:22:15,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:15,112 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:15,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 14:22:15,114 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 14:22:15,115 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 14:22:15,115 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 14:22:15,116 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2024-11-13 14:22:15,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 14:22:15,144 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 14:22:15,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:15,197 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:22:15,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:22:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:15,215 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:22:15,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:22:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:22:15,257 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 14:22:15,261 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First 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) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:22:15,311 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First 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). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 12 states and 14 transitions. Complement of second has 4 states. [2024-11-13 14:22:15,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-13 14:22:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:22:15,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-13 14:22:15,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2024-11-13 14:22:15,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:22:15,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2024-11-13 14:22:15,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:22:15,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-13 14:22:15,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:22:15,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2024-11-13 14:22:15,347 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 14:22:15,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2024-11-13 14:22:15,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 14:22:15,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 14:22:15,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 14:22:15,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 14:22:15,353 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:22:15,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:22:15,353 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:22:15,354 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 14:22:15,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:22:15,354 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 14:22:15,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 14:22:15,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 02:22:15 BoogieIcfgContainer [2024-11-13 14:22:15,365 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 14:22:15,366 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:22:15,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:22:15,366 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:22:15,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:13" (3/4) ... [2024-11-13 14:22:15,370 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:22:15,371 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:22:15,373 INFO L158 Benchmark]: Toolchain (without parser) took 2067.35ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 58.9MB in the end (delta: 60.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-13 14:22:15,373 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 167.8MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:15,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.56ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 109.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:22:15,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.94ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 108.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:15,378 INFO L158 Benchmark]: Boogie Preprocessor took 31.22ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 107.6MB in the end (delta: 704.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:15,379 INFO L158 Benchmark]: RCFGBuilder took 266.42ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 99.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:22:15,379 INFO L158 Benchmark]: BuchiAutomizer took 1447.44ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 58.9MB in the end (delta: 40.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 14:22:15,379 INFO L158 Benchmark]: Witness Printer took 5.79ms. Allocated memory is still 142.6MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:15,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 167.8MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.56ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 109.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.94ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 108.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.22ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 107.6MB in the end (delta: 704.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 266.42ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 99.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1447.44ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 58.9MB in the end (delta: 40.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 5.79ms. Allocated memory is still 142.6MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) 2 * x) + 1) and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 67ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-13 14:22:15,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-13 14:22:15,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb46a329-bfbf-4362-93b4-48f13d443fc4/bin/uautomizer-verify-qhAvR1uOyd/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 Result: TRUE