./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.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_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/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_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/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_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/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 0d6528b7cc69fe4ab1ae178e84639571fa28bd084493b226ea467e9ac1e22d5f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:32:33,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:32:33,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 14:32:33,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:32:33,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:32:33,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:32:33,529 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:32:33,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:32:33,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:32:33,530 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:32:33,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:32:33,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:32:33,531 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:32:33,531 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 14:32:33,531 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 14:32:33,531 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 14:32:33,531 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 14:32:33,532 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 14:32:33,532 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 14:32:33,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:32:33,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 14:32:33,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:32:33,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:32:33,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 14:32:33,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 14:32:33,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 14:32:33,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:32:33,533 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:32:33,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:32:33,533 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 14:32:33,533 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:32:33,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:32:33,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:32:33,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:32:33,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:32:33,534 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 14:32:33,535 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_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/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 -> 0d6528b7cc69fe4ab1ae178e84639571fa28bd084493b226ea467e9ac1e22d5f [2024-11-13 14:32:33,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:32:33,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:32:33,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:32:33,832 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:32:33,832 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:32:33,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c Unable to find full path for "g++" [2024-11-13 14:32:36,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:32:36,346 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:32:36,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c [2024-11-13 14:32:36,354 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/data/d78f2e0dd/dc11741ce21c4836bc9a20e06d104401/FLAGcef29ec17 [2024-11-13 14:32:36,378 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/data/d78f2e0dd/dc11741ce21c4836bc9a20e06d104401 [2024-11-13 14:32:36,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:32:36,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:32:36,393 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:32:36,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:32:36,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:32:36,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b93364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36, skipping insertion in model container [2024-11-13 14:32:36,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,426 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:32:36,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:32:36,634 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:32:36,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:32:36,665 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:32:36,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36 WrapperNode [2024-11-13 14:32:36,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:32:36,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:32:36,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:32:36,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:32:36,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,700 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-11-13 14:32:36,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:32:36,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:32:36,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:32:36,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:32:36,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,722 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 14:32:36,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:32:36,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:32:36,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:32:36,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:32:36,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (1/1) ... [2024-11-13 14:32:36,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:36,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:36,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:36,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 14:32:36,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:32:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:32:36,933 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:32:36,935 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:32:37,017 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-13 14:32:37,017 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:32:37,031 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:32:37,032 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 14:32:37,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:32:37 BoogieIcfgContainer [2024-11-13 14:32:37,033 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:32:37,034 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 14:32:37,034 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 14:32:37,042 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 14:32:37,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:32:37,043 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 02:32:36" (1/3) ... [2024-11-13 14:32:37,045 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e0b994b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:32:37, skipping insertion in model container [2024-11-13 14:32:37,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:32:37,045 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:32:36" (2/3) ... [2024-11-13 14:32:37,047 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e0b994b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:32:37, skipping insertion in model container [2024-11-13 14:32:37,047 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:32:37,047 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:32:37" (3/3) ... [2024-11-13 14:32:37,049 INFO L333 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig2.c [2024-11-13 14:32:37,123 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 14:32:37,124 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 14:32:37,124 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 14:32:37,124 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 14:32:37,124 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 14:32:37,124 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 14:32:37,125 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 14:32:37,125 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 14:32:37,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:37,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 14:32:37,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:32:37,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:32:37,154 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:32:37,155 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 14:32:37,155 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 14:32:37,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:37,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 14:32:37,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:32:37,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:32:37,157 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:32:37,157 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 14:32:37,167 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17-2true [2024-11-13 14:32:37,168 INFO L747 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 2#L19-2true assume !(main_~y~0#1 < main_~x~0#1); 9#L19-3true main_~x~0#1 := main_~x~0#1 - 1; 4#L17-2true [2024-11-13 14:32:37,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:37,175 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 14:32:37,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:37,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178496988] [2024-11-13 14:32:37,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:37,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:37,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:32:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:37,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:32:37,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:37,316 INFO L85 PathProgramCache]: Analyzing trace with hash 39919, now seen corresponding path program 1 times [2024-11-13 14:32:37,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:37,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411818513] [2024-11-13 14:32:37,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:37,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:37,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:32:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:37,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:32:37,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:37,357 INFO L85 PathProgramCache]: Analyzing trace with hash 28698861, now seen corresponding path program 1 times [2024-11-13 14:32:37,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:37,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570238234] [2024-11-13 14:32:37,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:37,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:37,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:32:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:37,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:32:37,526 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:32:37,527 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:32:37,527 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:32:37,527 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:32:37,528 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 14:32:37,528 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:37,529 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:32:37,529 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:32:37,530 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration1_Loop [2024-11-13 14:32:37,530 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:32:37,530 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:32:37,552 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:37,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:37,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:37,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:37,747 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:32:37,748 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 14:32:37,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:37,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:37,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:37,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 14:32:37,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:32:37,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:37,791 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:32:37,791 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 14:32:37,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:37,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:37,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:37,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:37,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 14:32:37,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:32:37,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:37,843 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:32:37,843 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 14:32:37,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:37,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:37,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:37,867 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:37,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 14:32:37,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:32:37,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:37,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:37,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:37,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:37,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:37,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 14:32:37,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 14:32:37,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:37,945 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 14:32:37,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:37,966 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:32:37,966 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:32:37,966 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:32:37,966 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:32:37,966 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 14:32:37,966 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:37,966 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:32:37,967 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:32:37,967 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration1_Loop [2024-11-13 14:32:37,967 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:32:37,967 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:32:37,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:37,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:37,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:38,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:38,085 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:32:38,093 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 14:32:38,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:38,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:38,098 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:38,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 14:32:38,102 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 14:32:38,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:32:38,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:32:38,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:32:38,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:32:38,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 14:32:38,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 14:32:38,143 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:32:38,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:38,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:38,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:38,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:38,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 14:32:38,174 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 14:32:38,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:32:38,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:32:38,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:32:38,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:32:38,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 14:32:38,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 14:32:38,208 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:32:38,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 14:32:38,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:38,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:38,237 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:38,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 14:32:38,243 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 14:32:38,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:32:38,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:32:38,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:32:38,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:32:38,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:32:38,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:32:38,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:32:38,274 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 14:32:38,280 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 14:32:38,287 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 14:32:38,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:38,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:38,292 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:38,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 14:32:38,296 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 14:32:38,297 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 14:32:38,297 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 14:32:38,298 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 14:32:38,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:38,328 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 14:32:38,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:38,403 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:32:38,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:38,429 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:32:38,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:38,483 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 14:32:38,520 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 14:32:38,522 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:38,594 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 31 transitions. Complement of second has 6 states. [2024-11-13 14:32:38,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 14:32:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:38,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-11-13 14:32:38,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-13 14:32:38,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:38,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-13 14:32:38,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:38,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-13 14:32:38,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:38,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 31 transitions. [2024-11-13 14:32:38,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 14:32:38,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2024-11-13 14:32:38,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-11-13 14:32:38,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-13 14:32:38,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-11-13 14:32:38,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 14:32:38,629 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 14:32:38,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-11-13 14:32:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-11-13 14:32:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 14:32:38,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2024-11-13 14:32:38,652 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-11-13 14:32:38,653 INFO L424 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-11-13 14:32:38,653 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 14:32:38,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2024-11-13 14:32:38,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 14:32:38,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:32:38,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:32:38,654 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 14:32:38,654 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 14:32:38,654 INFO L745 eck$LassoCheckResult]: Stem: 73#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 74#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 71#L17-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 68#L19-2 [2024-11-13 14:32:38,654 INFO L747 eck$LassoCheckResult]: Loop: 68#L19-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 68#L19-2 [2024-11-13 14:32:38,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:38,655 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-11-13 14:32:38,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:38,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539353118] [2024-11-13 14:32:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:38,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:38,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:32:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:38,665 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:32:38,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:38,666 INFO L85 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2024-11-13 14:32:38,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:38,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842408291] [2024-11-13 14:32:38,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:38,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:38,672 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:32:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:38,676 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:32:38,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:38,677 INFO L85 PathProgramCache]: Analyzing trace with hash 925771, now seen corresponding path program 1 times [2024-11-13 14:32:38,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:38,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496477202] [2024-11-13 14:32:38,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:38,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:38,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:32:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:38,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:32:38,715 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:32:38,716 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:32:38,716 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:32:38,716 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:32:38,716 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 14:32:38,716 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:38,716 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:32:38,716 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:32:38,716 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration2_Loop [2024-11-13 14:32:38,717 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:32:38,717 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:32:38,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:38,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:38,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:38,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 14:32:38,829 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:32:38,830 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 14:32:38,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:38,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:38,833 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:38,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 14:32:38,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:32:38,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:38,869 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:32:38,869 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:32:38,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-13 14:32:38,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:38,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:38,887 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:38,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 14:32:38,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:32:38,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:38,922 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:32:38,922 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:32:38,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-13 14:32:38,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:38,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:38,945 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:38,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 14:32:38,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:32:38,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:38,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-13 14:32:38,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:38,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:38,984 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:38,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 14:32:38,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 14:32:38,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:39,217 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 14:32:39,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 14:32:39,222 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:32:39,222 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:32:39,222 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:32:39,222 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:32:39,222 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 14:32:39,222 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:39,222 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:32:39,222 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:32:39,222 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration2_Loop [2024-11-13 14:32:39,222 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:32:39,222 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:32:39,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:39,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:39,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:39,312 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:32:39,313 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 14:32:39,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:39,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:39,316 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:39,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 14:32:39,319 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 14:32:39,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:32:39,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:32:39,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:32:39,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:32:39,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 14:32:39,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 14:32:39,348 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:32:39,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-13 14:32:39,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:39,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:39,372 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:39,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 14:32:39,376 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 14:32:39,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:32:39,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:32:39,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:32:39,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:32:39,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:32:39,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:32:39,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:32:39,397 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 14:32:39,403 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-13 14:32:39,403 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 14:32:39,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:39,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:39,406 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:39,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 14:32:39,408 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 14:32:39,409 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 14:32:39,409 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 14:32:39,409 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-13 14:32:39,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-13 14:32:39,437 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 14:32:39,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:39,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:32:39,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:39,534 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:32:39,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:39,535 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 14:32:39,535 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 14:32:39,536 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:39,558 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 14 transitions. Complement of second has 3 states. [2024-11-13 14:32:39,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-13 14:32:39,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:39,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-11-13 14:32:39,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2024-11-13 14:32:39,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:39,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 4 letters. Loop has 1 letters. [2024-11-13 14:32:39,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:39,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 2 letters. [2024-11-13 14:32:39,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:39,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 14 transitions. [2024-11-13 14:32:39,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 14:32:39,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 11 transitions. [2024-11-13 14:32:39,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-11-13 14:32:39,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-11-13 14:32:39,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-11-13 14:32:39,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 14:32:39,570 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 14:32:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-11-13 14:32:39,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-11-13 14:32:39,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:39,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2024-11-13 14:32:39,572 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-11-13 14:32:39,572 INFO L424 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-11-13 14:32:39,572 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 14:32:39,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2024-11-13 14:32:39,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 14:32:39,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:32:39,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:32:39,573 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-11-13 14:32:39,573 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 14:32:39,573 INFO L745 eck$LassoCheckResult]: Stem: 118#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 116#L17-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 114#L19-2 assume !(main_~y~0#1 < main_~x~0#1); 115#L19-3 main_~x~0#1 := main_~x~0#1 - 1; 117#L17-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 113#L19-2 [2024-11-13 14:32:39,573 INFO L747 eck$LassoCheckResult]: Loop: 113#L19-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 113#L19-2 [2024-11-13 14:32:39,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:39,577 INFO L85 PathProgramCache]: Analyzing trace with hash 889664701, now seen corresponding path program 2 times [2024-11-13 14:32:39,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:39,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430682121] [2024-11-13 14:32:39,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:39,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:39,591 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:32:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:39,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:32:39,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 2 times [2024-11-13 14:32:39,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:39,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997330939] [2024-11-13 14:32:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:39,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:39,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:32:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:32:39,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:32:39,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:39,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1809801973, now seen corresponding path program 1 times [2024-11-13 14:32:39,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:39,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003690534] [2024-11-13 14:32:39,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:39,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:32:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:32:39,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:32:39,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003690534] [2024-11-13 14:32:39,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003690534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:32:39,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716682276] [2024-11-13 14:32:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:39,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:32:39,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:39,821 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:32:39,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 14:32:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:39,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:32:39,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:32:39,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:32:39,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:32:39,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716682276] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:32:39,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:32:39,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-13 14:32:39,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239439175] [2024-11-13 14:32:39,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:32:40,023 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:32:40,024 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:32:40,024 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:32:40,024 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:32:40,024 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 14:32:40,024 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:40,024 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:32:40,024 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:32:40,024 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration3_Loop [2024-11-13 14:32:40,024 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:32:40,024 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:32:40,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:40,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:40,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:40,098 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:32:40,098 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 14:32:40,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:40,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:40,101 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:40,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-13 14:32:40,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:32:40,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:40,139 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:32:40,140 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:32:40,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-13 14:32:40,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:40,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:40,167 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:40,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 14:32:40,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:32:40,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:40,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:40,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:40,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:40,224 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:40,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 14:32:40,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 14:32:40,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:32:40,481 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 14:32:40,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 14:32:40,485 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:32:40,485 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:32:40,485 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:32:40,485 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:32:40,485 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 14:32:40,485 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:40,485 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:32:40,485 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:32:40,485 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration3_Loop [2024-11-13 14:32:40,486 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:32:40,486 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:32:40,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:40,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:40,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:32:40,560 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:32:40,561 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 14:32:40,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:40,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:40,563 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:40,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 14:32:40,567 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 14:32:40,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:32:40,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:32:40,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:32:40,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:32:40,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 14:32:40,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 14:32:40,605 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:32:40,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:40,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:40,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:40,632 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:40,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 14:32:40,636 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 14:32:40,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:32:40,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:32:40,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:32:40,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:32:40,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:32:40,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:32:40,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:32:40,661 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 14:32:40,668 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-13 14:32:40,668 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 14:32:40,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:32:40,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:32:40,672 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:32:40,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 14:32:40,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 14:32:40,678 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 14:32:40,678 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 14:32:40,678 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-13 14:32:40,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:40,703 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 14:32:40,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:40,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:32:40,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:40,752 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:32:40,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:40,753 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 14:32:40,753 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 14:32:40,754 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:32:40,764 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8 states and 11 transitions. Complement of second has 3 states. [2024-11-13 14:32:40,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-13 14:32:40,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:32:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-11-13 14:32:40,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 1 letters. [2024-11-13 14:32:40,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:40,766 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 14:32:40,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:40,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:32:40,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:40,810 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:32:40,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:40,812 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 14:32:40,812 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 14:32:40,813 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:32:40,823 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8 states and 11 transitions. Complement of second has 3 states. [2024-11-13 14:32:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-13 14:32:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:32:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-11-13 14:32:40,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 1 letters. [2024-11-13 14:32:40,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:40,826 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 14:32:40,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:40,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:32:40,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:40,874 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:32:40,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:40,875 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 14:32:40,876 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 14:32:40,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:32:40,887 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8 states and 10 transitions. Complement of second has 2 states. [2024-11-13 14:32:40,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-13 14:32:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:32:40,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2024-11-13 14:32:40,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 6 letters. Loop has 1 letters. [2024-11-13 14:32:40,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:40,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 7 letters. Loop has 1 letters. [2024-11-13 14:32:40,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:40,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-13 14:32:40,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:40,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. [2024-11-13 14:32:40,890 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 14:32:40,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2024-11-13 14:32:40,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 14:32:40,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 14:32:40,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 14:32:40,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 14:32:40,891 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:32:40,891 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:32:40,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:32:40,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:32:40,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:32:40,895 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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 14:32:40,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:32:40,898 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-13 14:32:40,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-13 14:32:40,898 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 14:32:40,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 14:32:40,898 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 14:32:40,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 14:32:40,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 14:32:40,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 14:32:40,899 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:32:40,899 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:32:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:32:40,900 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:32:40,900 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 14:32:40,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:32:40,900 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 14:32:40,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 14:32:40,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 02:32:40 BoogieIcfgContainer [2024-11-13 14:32:40,912 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 14:32:40,913 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:32:40,913 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:32:40,913 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:32:40,914 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:32:37" (3/4) ... [2024-11-13 14:32:40,917 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:32:40,919 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:32:40,920 INFO L158 Benchmark]: Toolchain (without parser) took 4534.27ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 70.5MB in the end (delta: 47.9MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-11-13 14:32:40,920 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:32:40,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.89ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 108.4MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:32:40,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.96ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.6MB in the end (delta: 786.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:32:40,922 INFO L158 Benchmark]: Boogie Preprocessor took 32.65ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:32:40,922 INFO L158 Benchmark]: RCFGBuilder took 296.72ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 97.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:32:40,923 INFO L158 Benchmark]: BuchiAutomizer took 3878.61ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 70.5MB in the end (delta: 26.7MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-11-13 14:32:40,923 INFO L158 Benchmark]: Witness Printer took 5.91ms. Allocated memory is still 142.6MB. Free memory was 70.5MB in the beginning and 70.5MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:32:40,925 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.89ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 108.4MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.96ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.6MB in the end (delta: 786.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.65ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 296.72ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 97.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3878.61ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 70.5MB in the end (delta: 26.7MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 5.91ms. Allocated memory is still 142.6MB. Free memory was 70.5MB in the beginning and 70.5MB in the end (delta: 27.0kB). 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) 2 * x) + 1) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * y) + x) and consists of 2 locations. One nondeterministic module has affine ranking function (((long) -1 * y) + x) and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 17 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax197 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s 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 14:32:40,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-13 14:32:41,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 14:32:41,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-13 14:32:41,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_243106ee-ed22-4b54-8c2a-2e9ce0a4bfc2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE