./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/rec_counter1.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_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/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_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/rec_counter1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/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_12d286d4-b335-43af-a5ea-1a25e3b4f840/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 de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:37:20,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:37:20,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 15:37:20,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:37:20,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:37:20,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:37:20,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:37:20,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:37:20,884 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:37:20,885 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:37:20,885 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:37:20,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:37:20,886 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:37:20,886 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:37:20,887 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:37:20,887 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:37:20,887 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:37:20,888 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:37:20,888 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:37:20,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:37:20,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:37:20,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:37:20,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:37:20,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:37:20,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:37:20,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:37:20,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:37:20,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:37:20,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:37:20,890 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:37:20,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:37:20,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:37:20,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:37:20,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:37:20,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:37:20,891 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:37:20,892 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_12d286d4-b335-43af-a5ea-1a25e3b4f840/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 -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2024-11-13 15:37:21,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:37:21,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:37:21,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:37:21,351 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:37:21,352 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:37:21,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-numeric/rec_counter1.c Unable to find full path for "g++" [2024-11-13 15:37:23,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:37:24,042 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:37:24,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/sv-benchmarks/c/termination-numeric/rec_counter1.c [2024-11-13 15:37:24,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/data/c8543b0d3/28fdc1b773434b56917045a4955d8d56/FLAG88d9f77c3 [2024-11-13 15:37:24,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/data/c8543b0d3/28fdc1b773434b56917045a4955d8d56 [2024-11-13 15:37:24,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:37:24,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:37:24,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:37:24,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:37:24,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:37:24,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec3a98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24, skipping insertion in model container [2024-11-13 15:37:24,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,116 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:37:24,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:37:24,299 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:37:24,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:37:24,333 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:37:24,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24 WrapperNode [2024-11-13 15:37:24,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:37:24,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:37:24,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:37:24,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:37:24,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,373 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2024-11-13 15:37:24,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:37:24,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:37:24,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:37:24,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:37:24,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,395 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 15:37:24,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:37:24,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:37:24,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:37:24,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:37:24,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (1/1) ... [2024-11-13 15:37:24,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:24,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:24,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:24,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:37:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-11-13 15:37:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-11-13 15:37:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:37:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:37:24,552 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:37:24,554 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:37:24,699 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-13 15:37:24,700 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:37:24,715 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:37:24,716 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:37:24,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:37:24 BoogieIcfgContainer [2024-11-13 15:37:24,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:37:24,721 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:37:24,721 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:37:24,727 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:37:24,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:37:24,728 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:37:24" (1/3) ... [2024-11-13 15:37:24,729 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bb80663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:37:24, skipping insertion in model container [2024-11-13 15:37:24,730 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:37:24,730 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:37:24" (2/3) ... [2024-11-13 15:37:24,731 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bb80663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:37:24, skipping insertion in model container [2024-11-13 15:37:24,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:37:24,732 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:37:24" (3/3) ... [2024-11-13 15:37:24,734 INFO L333 chiAutomizerObserver]: Analyzing ICFG rec_counter1.c [2024-11-13 15:37:24,828 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:37:24,828 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:37:24,828 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:37:24,828 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:37:24,829 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:37:24,830 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:37:24,830 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:37:24,830 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:37:24,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:37:24,862 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:37:24,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:37:24,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:37:24,872 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-13 15:37:24,872 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:37:24,873 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:37:24,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:37:24,875 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:37:24,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:37:24,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:37:24,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-13 15:37:24,878 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:37:24,890 INFO L745 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;havoc main_#t~nondet2#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L18true assume !(main_~i~0#1 <= 0); 15#L20true call main_#t~ret3#1 := rec(main_~i~0#1);< 12#$Ultimate##0true [2024-11-13 15:37:24,891 INFO L747 eck$LassoCheckResult]: Loop: 12#$Ultimate##0true ~a := #in~a; 4#L5true assume !(0 == ~a); 9#L8true call #t~ret0 := rec(~a - 1);< 12#$Ultimate##0true [2024-11-13 15:37:24,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1541355, now seen corresponding path program 1 times [2024-11-13 15:37:24,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:37:24,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262211052] [2024-11-13 15:37:24,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:37:24,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:37:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:25,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:37:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:25,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:37:25,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:25,056 INFO L85 PathProgramCache]: Analyzing trace with hash 29948, now seen corresponding path program 1 times [2024-11-13 15:37:25,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:37:25,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524791545] [2024-11-13 15:37:25,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:37:25,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:37:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:25,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:37:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:25,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:37:25,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:25,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1326133294, now seen corresponding path program 1 times [2024-11-13 15:37:25,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:37:25,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062806441] [2024-11-13 15:37:25,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:37:25,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:37:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:25,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:37:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:25,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:37:25,225 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:37:25,226 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:37:25,226 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:37:25,226 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:37:25,226 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:37:25,227 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,227 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:37:25,227 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:37:25,227 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Loop [2024-11-13 15:37:25,227 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:37:25,227 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:37:25,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,402 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:37:25,403 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:37:25,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:25,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:25,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 15:37:25,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:25,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:25,444 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:25,444 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:25,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:25,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:25,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:25,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 15:37:25,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:25,465 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:25,483 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:25,483 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:25,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 15:37:25,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:25,503 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:25,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 15:37:25,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:25,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:25,531 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:25,531 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:25,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 15:37:25,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:25,556 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:25,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 15:37:25,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:25,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:25,582 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:25,582 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:25,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-13 15:37:25,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:25,609 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:25,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 15:37:25,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:25,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:25,630 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:25,631 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:25,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 15:37:25,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:25,650 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:25,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 15:37:25,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:25,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:25,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:25,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:25,688 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:25,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 15:37:25,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:37:25,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:25,737 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:25,737 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#in~a=-1} Honda state: {rec_#in~a=-1} Generalized eigenvectors: [{rec_#in~a=0}, {rec_#in~a=0}, {rec_#in~a=-1}] Lambdas: [4, 1, 1] Nus: [1, 0] [2024-11-13 15:37:25,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 15:37:25,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:25,763 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:25,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 15:37:25,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:25,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:25,788 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:25,789 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:25,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 15:37:25,847 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:37:25,848 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:37:25,848 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:37:25,848 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:37:25,848 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:37:25,848 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:25,848 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:37:25,848 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:37:25,848 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2024-11-13 15:37:25,848 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:37:25,848 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:37:25,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:25,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,049 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:37:26,049 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:37:26,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,051 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 15:37:26,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,077 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,077 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:26,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,102 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 15:37:26,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,128 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,128 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-13 15:37:26,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,156 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 15:37:26,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,182 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,183 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-13 15:37:26,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,201 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 15:37:26,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,219 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,219 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret4#1=0} Honda state: {ULTIMATE.start_#t~ret4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 15:37:26,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,240 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 15:37:26,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,260 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,260 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:26,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,277 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 15:37:26,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,296 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,296 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-13 15:37:26,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,323 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 15:37:26,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,358 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,358 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:26,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,374 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-13 15:37:26,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,394 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,395 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3#1=0} Honda state: {ULTIMATE.start_main_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-13 15:37:26,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,420 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-13 15:37:26,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,445 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,445 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:26,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,470 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 15:37:26,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,495 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,495 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:26,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,522 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 15:37:26,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,551 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:37:26,551 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~1#1=0} Honda state: {ULTIMATE.start_main_~res~1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:37:26,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 15:37:26,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,576 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 15:37:26,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:26,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-13 15:37:26,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,618 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 15:37:26,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:37:26,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:26,670 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:37:26,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-13 15:37:26,673 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:37:26,673 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:37:26,673 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:37:26,674 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:37:26,674 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:37:26,674 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,674 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:37:26,674 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:37:26,674 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2024-11-13 15:37:26,674 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:37:26,674 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:37:26,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,690 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,707 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,712 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:26,852 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:37:26,857 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:37:26,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,861 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 15:37:26,865 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 15:37:26,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:26,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:26,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:26,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:26,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:26,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:26,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:26,895 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:37:26,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:26,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,920 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 15:37:26,927 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 15:37:26,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:26,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:26,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:26,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:26,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:26,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:26,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:26,948 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:37:26,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:26,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:26,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:26,965 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:26,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 15:37:26,968 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 15:37:26,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:26,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:26,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:26,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:26,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:26,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:26,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:26,987 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:37:27,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-13 15:37:27,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:27,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:27,009 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:27,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 15:37:27,011 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 15:37:27,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:27,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:27,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:27,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:27,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:27,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:27,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:27,028 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:37:27,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-13 15:37:27,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:27,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:27,044 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:27,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 15:37:27,046 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 15:37:27,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:27,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:27,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:27,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:27,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:27,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:27,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:27,063 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:37:27,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-13 15:37:27,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:27,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:27,080 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:27,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 15:37:27,082 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 15:37:27,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:27,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:27,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:27,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:27,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:27,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:27,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:27,104 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:37:27,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:27,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:27,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:27,129 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:27,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-13 15:37:27,134 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 15:37:27,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:27,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:27,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:27,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:27,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:27,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:27,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:27,159 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:37:27,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:27,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:27,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:27,184 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:27,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-13 15:37:27,189 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 15:37:27,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:27,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:27,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:27,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:27,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:27,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:27,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:27,215 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:37:27,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:27,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:27,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:27,240 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:27,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-13 15:37:27,244 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 15:37:27,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:27,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:27,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:27,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:27,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:27,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:27,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:27,268 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:37:27,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-13 15:37:27,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:27,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:27,289 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:27,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-13 15:37:27,291 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 15:37:27,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:27,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:27,305 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 15:37:27,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:27,318 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-11-13 15:37:27,318 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 15:37:27,350 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:37:27,393 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-11-13 15:37:27,397 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. [2024-11-13 15:37:27,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:27,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:27,402 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:27,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-13 15:37:27,405 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:37:27,432 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-11-13 15:37:27,432 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:37:27,433 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~a) = 1*rec_#in~a Supporting invariants [1*rec_#in~a >= 0] [2024-11-13 15:37:27,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-13 15:37:27,462 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-13 15:37:27,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:27,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:37:27,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:27,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 15:37:27,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:27,663 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 15:37:27,705 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-13 15:37:27,708 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:37:27,936 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 40 transitions. Complement of second has 17 states. [2024-11-13 15:37:27,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 15:37:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:37:27,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2024-11-13 15:37:27,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-13 15:37:27,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:27,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-13 15:37:27,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:27,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2024-11-13 15:37:27,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:27,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2024-11-13 15:37:27,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 15:37:27,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 18 states and 23 transitions. [2024-11-13 15:37:27,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-13 15:37:27,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-13 15:37:27,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2024-11-13 15:37:27,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:37:27,983 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-13 15:37:27,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2024-11-13 15:37:28,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2024-11-13 15:37:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:37:28,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2024-11-13 15:37:28,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-13 15:37:28,019 INFO L424 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-13 15:37:28,019 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 15:37:28,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2024-11-13 15:37:28,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 15:37:28,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:37:28,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:37:28,022 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:37:28,023 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 15:37:28,023 INFO L745 eck$LassoCheckResult]: Stem: 128#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 129#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;havoc main_#t~nondet2#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 122#L18 assume !(main_~i~0#1 <= 0); 123#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 134#$Ultimate##0 ~a := #in~a; 132#L5 assume !(0 == ~a); 125#L8 call #t~ret0 := rec(~a - 1);< 127#$Ultimate##0 ~a := #in~a; 130#L5 assume 0 == ~a;#res := 0; 131#recFINAL assume true; 135#recEXIT >#34#return; 124#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 126#L10-2 [2024-11-13 15:37:28,024 INFO L747 eck$LassoCheckResult]: Loop: 126#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1; 126#L10-2 [2024-11-13 15:37:28,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:28,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1762651138, now seen corresponding path program 1 times [2024-11-13 15:37:28,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:37:28,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447377558] [2024-11-13 15:37:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:37:28,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:37:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:28,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:37:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:28,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:37:28,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:28,062 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2024-11-13 15:37:28,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:37:28,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506045444] [2024-11-13 15:37:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:37:28,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:37:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:28,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:37:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:28,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:37:28,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:28,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1192389556, now seen corresponding path program 1 times [2024-11-13 15:37:28,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:37:28,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514396391] [2024-11-13 15:37:28,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:37:28,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:37:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:28,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 15:37:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:28,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:37:28,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:37:28,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514396391] [2024-11-13 15:37:28,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514396391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:37:28,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:37:28,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:37:28,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021134169] [2024-11-13 15:37:28,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:37:28,412 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:37:28,413 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:37:28,413 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:37:28,413 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:37:28,413 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:37:28,413 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:28,413 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:37:28,413 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:37:28,413 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2024-11-13 15:37:28,413 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:37:28,414 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:37:28,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:28,444 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:37:28,444 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:37:28,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:28,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:28,447 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:28,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-13 15:37:28,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:28,450 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:28,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-13 15:37:28,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:28,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:28,494 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:28,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-13 15:37:28,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:37:28,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:28,550 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:37:28,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-13 15:37:28,555 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:37:28,555 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:37:28,555 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:37:28,555 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:37:28,555 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:37:28,555 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:28,555 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:37:28,555 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:37:28,555 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2024-11-13 15:37:28,555 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:37:28,555 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:37:28,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:28,589 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:37:28,589 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:37:28,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:28,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:28,592 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:28,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-13 15:37:28,595 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 15:37:28,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:28,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:28,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:28,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:28,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:28,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:28,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:28,619 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:37:28,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:37:28,625 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:37:28,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:28,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:28,629 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:28,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-13 15:37:28,633 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:37:28,633 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:37:28,633 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:37:28,633 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2024-11-13 15:37:28,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-13 15:37:28,654 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:37:28,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:28,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-13 15:37:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:28,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:37:28,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:28,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-13 15:37:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:28,900 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:37:28,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:28,901 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 15:37:28,901 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-11-13 15:37:28,902 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:37:28,961 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 35 states and 52 transitions. Complement of second has 8 states. [2024-11-13 15:37:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-13 15:37:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:37:28,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-11-13 15:37:28,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 12 letters. Loop has 1 letters. [2024-11-13 15:37:28,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:28,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 13 letters. Loop has 1 letters. [2024-11-13 15:37:28,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:28,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-13 15:37:28,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:28,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 52 transitions. [2024-11-13 15:37:28,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 15:37:28,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 22 states and 28 transitions. [2024-11-13 15:37:28,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-11-13 15:37:28,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-13 15:37:28,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2024-11-13 15:37:28,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:37:28,972 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 28 transitions. [2024-11-13 15:37:28,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2024-11-13 15:37:28,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2024-11-13 15:37:28,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 15:37:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2024-11-13 15:37:28,976 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-11-13 15:37:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:37:28,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:37:28,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:37:28,979 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:37:29,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:37:29,066 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2024-11-13 15:37:29,066 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2024-11-13 15:37:29,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 15:37:29,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 23 transitions. [2024-11-13 15:37:29,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-11-13 15:37:29,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-11-13 15:37:29,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2024-11-13 15:37:29,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:37:29,069 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-13 15:37:29,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2024-11-13 15:37:29,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-13 15:37:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 15:37:29,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-11-13 15:37:29,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-13 15:37:29,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:37:29,078 INFO L424 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-13 15:37:29,078 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 15:37:29,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2024-11-13 15:37:29,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-13 15:37:29,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:37:29,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:37:29,079 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:37:29,079 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 15:37:29,080 INFO L745 eck$LassoCheckResult]: Stem: 294#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;havoc main_#t~nondet2#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 287#L18 assume !(main_~i~0#1 <= 0); 288#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 301#$Ultimate##0 ~a := #in~a; 298#L5 assume !(0 == ~a); 290#L8 call #t~ret0 := rec(~a - 1);< 293#$Ultimate##0 ~a := #in~a; 302#L5 assume !(0 == ~a); 291#L8 call #t~ret0 := rec(~a - 1);< 293#$Ultimate##0 ~a := #in~a; 296#L5 assume 0 == ~a;#res := 0; 297#recFINAL assume true; 305#recEXIT >#34#return; 306#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 299#L10-2 assume !(~rescopy~0 > 0); 300#L10-3 #res := 1 + ~res~0; 304#recFINAL assume true; 303#recEXIT >#34#return; 289#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 292#L10-2 [2024-11-13 15:37:29,080 INFO L747 eck$LassoCheckResult]: Loop: 292#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1; 292#L10-2 [2024-11-13 15:37:29,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:29,081 INFO L85 PathProgramCache]: Analyzing trace with hash -305480216, now seen corresponding path program 1 times [2024-11-13 15:37:29,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:37:29,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480132543] [2024-11-13 15:37:29,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:37:29,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:37:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:29,106 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:37:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:29,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:37:29,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:29,126 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 2 times [2024-11-13 15:37:29,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:37:29,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459551763] [2024-11-13 15:37:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:37:29,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:37:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:29,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:37:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:29,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:37:29,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:29,134 INFO L85 PathProgramCache]: Analyzing trace with hash -879952090, now seen corresponding path program 1 times [2024-11-13 15:37:29,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:37:29,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995354859] [2024-11-13 15:37:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:37:29,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:37:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:29,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:37:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:37:29,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:37:29,185 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:37:29,186 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:37:29,186 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:37:29,186 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:37:29,186 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:37:29,186 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:29,186 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:37:29,186 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:37:29,186 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2024-11-13 15:37:29,186 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:37:29,186 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:37:29,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:29,220 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:37:29,220 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:37:29,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:29,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:29,223 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:29,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-13 15:37:29,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:37:29,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:29,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-13 15:37:29,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:29,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:29,262 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:29,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-13 15:37:29,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:37:29,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:37:29,311 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:37:29,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-13 15:37:29,314 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:37:29,314 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:37:29,314 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:37:29,314 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:37:29,314 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:37:29,314 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:29,314 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:37:29,314 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:37:29,314 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2024-11-13 15:37:29,314 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:37:29,314 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:37:29,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:37:29,346 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:37:29,346 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:37:29,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:29,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:29,351 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:29,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-13 15:37:29,355 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 15:37:29,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:37:29,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:37:29,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:37:29,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:37:29,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:37:29,376 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:37:29,376 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:37:29,381 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:37:29,387 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:37:29,387 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:37:29,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:37:29,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:37:29,390 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:37:29,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-13 15:37:29,394 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:37:29,394 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:37:29,394 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:37:29,394 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2024-11-13 15:37:29,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:29,417 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:37:29,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:29,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:37:29,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:29,721 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:37:29,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:29,723 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 15:37:29,723 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-11-13 15:37:29,724 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:37:29,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 21 states and 24 transitions. Complement of second has 5 states. [2024-11-13 15:37:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-13 15:37:29,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:37:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-13 15:37:29,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 20 letters. Loop has 1 letters. [2024-11-13 15:37:29,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:29,775 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:37:29,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:29,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:37:29,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:30,025 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:37:30,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:30,026 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 15:37:30,027 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2024-11-13 15:37:30,027 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:37:30,076 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 21 states and 24 transitions. Complement of second has 5 states. [2024-11-13 15:37:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-13 15:37:30,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:37:30,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-13 15:37:30,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 20 letters. Loop has 1 letters. [2024-11-13 15:37:30,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:30,078 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:37:30,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:37:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:30,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:37:30,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:30,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-13 15:37:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:37:30,353 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:37:30,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:37:30,354 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 15:37:30,355 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-11-13 15:37:30,355 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:37:30,404 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 27 states and 32 transitions. Complement of second has 5 states. [2024-11-13 15:37:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-13 15:37:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:37:30,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2024-11-13 15:37:30,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 20 letters. Loop has 1 letters. [2024-11-13 15:37:30,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:30,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 21 letters. Loop has 1 letters. [2024-11-13 15:37:30,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:30,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2024-11-13 15:37:30,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:37:30,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2024-11-13 15:37:30,408 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 15:37:30,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2024-11-13 15:37:30,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 15:37:30,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 15:37:30,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 15:37:30,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:37:30,409 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:37:30,409 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:37:30,409 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:37:30,409 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 15:37:30,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:37:30,409 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 15:37:30,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 15:37:30,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:37:30 BoogieIcfgContainer [2024-11-13 15:37:30,419 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:37:30,420 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:37:30,420 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:37:30,421 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:37:30,421 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:37:24" (3/4) ... [2024-11-13 15:37:30,424 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:37:30,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:37:30,426 INFO L158 Benchmark]: Toolchain (without parser) took 6339.52ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 99.5MB in the end (delta: 19.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-13 15:37:30,426 INFO L158 Benchmark]: CDTParser took 2.00ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:37:30,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.63ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 109.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:37:30,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.23ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 107.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:37:30,427 INFO L158 Benchmark]: Boogie Preprocessor took 34.53ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 107.2MB in the end (delta: 711.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:37:30,428 INFO L158 Benchmark]: RCFGBuilder took 310.62ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 97.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:37:30,428 INFO L158 Benchmark]: BuchiAutomizer took 5698.74ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 100.4MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:37:30,429 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 99.5MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:37:30,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.00ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.63ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 109.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.23ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 107.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.53ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 107.2MB in the end (delta: 711.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 310.62ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 97.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5698.74ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 100.4MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 99.5MB in the end (delta: 24.0kB). 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 \old(a) and consists of 6 locations. One deterministic module has affine ranking function rescopy and consists of 4 locations. One nondeterministic module has affine ranking function rescopy and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 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, 80 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 105 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 62 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf120 smp100 tf108 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 145ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 1 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 15:37:30,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d286d4-b335-43af-a5ea-1a25e3b4f840/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