./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya --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 a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:07:53,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:07:53,423 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 06:07:53,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:07:53,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:07:53,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:07:53,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:07:53,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:07:53,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:07:53,455 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:07:53,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:07:53,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:07:53,457 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:07:53,458 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 06:07:53,458 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 06:07:53,459 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 06:07:53,459 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 06:07:53,460 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 06:07:53,460 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 06:07:53,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:07:53,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 06:07:53,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:07:53,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:07:53,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 06:07:53,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 06:07:53,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 06:07:53,464 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:07:53,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:07:53,465 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 06:07:53,465 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:07:53,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:07:53,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:07:53,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:07:53,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:07:53,468 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 06:07:53,468 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c [2023-11-29 06:07:53,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:07:53,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:07:53,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:07:53,685 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:07:53,685 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:07:53,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-bwb/and-02.c [2023-11-29 06:07:56,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:07:56,545 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:07:56,546 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/sv-benchmarks/c/termination-bwb/and-02.c [2023-11-29 06:07:56,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/data/c615964f9/df8df4e4dd5f45459e2b78cf0964507a/FLAG725debf26 [2023-11-29 06:07:56,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/data/c615964f9/df8df4e4dd5f45459e2b78cf0964507a [2023-11-29 06:07:56,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:07:56,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:07:56,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:07:56,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:07:56,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:07:56,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123d01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56, skipping insertion in model container [2023-11-29 06:07:56,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,589 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:07:56,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:07:56,707 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:07:56,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:07:56,728 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:07:56,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56 WrapperNode [2023-11-29 06:07:56,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:07:56,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:07:56,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:07:56,730 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:07:56,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,759 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2023-11-29 06:07:56,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:07:56,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:07:56,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:07:56,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:07:56,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,772 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,778 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 06:07:56,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:07:56,788 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:07:56,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:07:56,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:07:56,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (1/1) ... [2023-11-29 06:07:56,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:56,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:56,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:56,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 06:07:56,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:07:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:07:56,908 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:07:56,909 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:07:57,012 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:07:57,023 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:07:57,023 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:07:57,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:07:57 BoogieIcfgContainer [2023-11-29 06:07:57,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:07:57,027 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 06:07:57,027 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 06:07:57,032 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 06:07:57,033 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:07:57,033 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:07:56" (1/3) ... [2023-11-29 06:07:57,034 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@413ea34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:07:57, skipping insertion in model container [2023-11-29 06:07:57,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:07:57,035 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:07:56" (2/3) ... [2023-11-29 06:07:57,035 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@413ea34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:07:57, skipping insertion in model container [2023-11-29 06:07:57,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:07:57,036 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:07:57" (3/3) ... [2023-11-29 06:07:57,037 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-02.c [2023-11-29 06:07:57,095 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 06:07:57,096 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 06:07:57,096 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 06:07:57,096 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 06:07:57,096 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 06:07:57,096 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 06:07:57,097 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 06:07:57,097 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 06:07:57,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:57,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 06:07:57,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:07:57,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:07:57,126 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 06:07:57,126 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 06:07:57,127 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 06:07:57,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:57,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 06:07:57,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:07:57,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:07:57,130 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 06:07:57,130 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 06:07:57,137 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 6#L18-2true [2023-11-29 06:07:57,137 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 4#L18true assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 6#L18-2true [2023-11-29 06:07:57,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:57,144 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 06:07:57,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:57,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437208852] [2023-11-29 06:07:57,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:57,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:57,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:57,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:57,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2023-11-29 06:07:57,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:57,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994160130] [2023-11-29 06:07:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:57,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:57,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:57,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:57,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:57,269 INFO L85 PathProgramCache]: Analyzing trace with hash 925812, now seen corresponding path program 1 times [2023-11-29 06:07:57,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:57,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581054840] [2023-11-29 06:07:57,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:57,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:57,280 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:57,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:57,373 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:07:57,374 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:07:57,375 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:07:57,375 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:07:57,375 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:07:57,375 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:07:57,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:07:57,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2023-11-29 06:07:57,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:07:57,377 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:07:57,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:57,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:57,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:57,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:57,502 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:07:57,503 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:07:57,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:57,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:57,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 06:07:57,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:07:57,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:57,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:07:57,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:57,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:57,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 06:07:57,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:07:57,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:57,580 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:07:57,581 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=-6}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=6}] Lambdas: [1, 7, 1] Nus: [0, 1] [2023-11-29 06:07:57,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 06:07:57,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:57,607 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:57,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 06:07:57,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:07:57,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:57,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:07:57,649 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:07:57,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 06:07:57,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:57,661 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:57,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 06:07:57,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:07:57,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:57,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 06:07:57,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:57,694 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:57,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 06:07:57,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:07:57,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:57,726 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:07:57,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 06:07:57,731 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:07:57,731 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:07:57,731 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:07:57,731 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:07:57,731 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:07:57,731 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,731 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:07:57,731 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:07:57,732 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2023-11-29 06:07:57,732 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:07:57,732 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:07:57,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:57,738 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:57,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:57,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:57,809 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:07:57,813 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:07:57,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:57,816 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:57,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 06:07:57,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:07:57,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:07:57,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:07:57,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:07:57,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:07:57,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:07:57,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:07:57,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:07:57,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:07:57,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-29 06:07:57,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:57,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:57,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 06:07:57,851 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:07:57,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:07:57,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:07:57,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:07:57,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:07:57,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:07:57,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:07:57,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:07:57,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:07:57,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 06:07:57,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:57,876 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:57,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 06:07:57,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:07:57,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:07:57,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:07:57,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:07:57,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:07:57,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:07:57,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:07:57,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:07:57,898 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:07:57,906 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 06:07:57,906 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 06:07:57,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:57,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:57,941 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:57,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 06:07:57,943 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:07:57,943 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:07:57,943 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:07:57,944 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 06:07:57,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 06:07:57,950 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:07:57,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:57,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:07:57,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:07:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:58,002 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:07:58,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:07:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:07:58,033 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 06:07:58,035 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:58,080 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 43 transitions. Complement of second has 6 states. [2023-11-29 06:07:58,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 06:07:58,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-29 06:07:58,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-29 06:07:58,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:07:58,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-29 06:07:58,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:07:58,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-29 06:07:58,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:07:58,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 43 transitions. [2023-11-29 06:07:58,092 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 06:07:58,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 14 states and 21 transitions. [2023-11-29 06:07:58,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-29 06:07:58,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-29 06:07:58,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2023-11-29 06:07:58,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:07:58,096 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-29 06:07:58,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2023-11-29 06:07:58,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2023-11-29 06:07:58,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2023-11-29 06:07:58,118 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-11-29 06:07:58,118 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-11-29 06:07:58,118 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 06:07:58,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2023-11-29 06:07:58,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 06:07:58,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:07:58,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:07:58,119 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 06:07:58,119 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-29 06:07:58,119 INFO L748 eck$LassoCheckResult]: Stem: 83#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 85#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 77#L18 assume main_~x~0#1 > 0; 78#L19 [2023-11-29 06:07:58,119 INFO L750 eck$LassoCheckResult]: Loop: 78#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 76#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 81#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 82#L18 assume main_~x~0#1 > 0; 78#L19 [2023-11-29 06:07:58,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:58,120 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-29 06:07:58,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:58,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359077052] [2023-11-29 06:07:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:58,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:58,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:58,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:58,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:58,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1455309, now seen corresponding path program 1 times [2023-11-29 06:07:58,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:58,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983396814] [2023-11-29 06:07:58,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:58,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:58,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:07:58,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:07:58,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983396814] [2023-11-29 06:07:58,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983396814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:07:58,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:07:58,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:07:58,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121681898] [2023-11-29 06:07:58,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:07:58,179 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:07:58,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:07:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:07:58,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:07:58,182 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:07:58,205 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2023-11-29 06:07:58,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2023-11-29 06:07:58,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-29 06:07:58,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2023-11-29 06:07:58,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-29 06:07:58,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-29 06:07:58,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-11-29 06:07:58,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:07:58,207 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-29 06:07:58,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-11-29 06:07:58,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-29 06:07:58,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:58,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2023-11-29 06:07:58,210 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-29 06:07:58,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:07:58,211 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-29 06:07:58,211 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 06:07:58,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2023-11-29 06:07:58,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-29 06:07:58,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:07:58,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:07:58,212 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 06:07:58,212 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-29 06:07:58,213 INFO L748 eck$LassoCheckResult]: Stem: 115#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 116#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 119#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 114#L18 assume main_~x~0#1 > 0; 117#L19 [2023-11-29 06:07:58,213 INFO L750 eck$LassoCheckResult]: Loop: 117#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 107#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~x~0#1; 108#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 110#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 113#L18 assume main_~x~0#1 > 0; 117#L19 [2023-11-29 06:07:58,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:58,213 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 2 times [2023-11-29 06:07:58,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:58,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916185809] [2023-11-29 06:07:58,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:58,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:58,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:58,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:58,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:58,223 INFO L85 PathProgramCache]: Analyzing trace with hash 46856793, now seen corresponding path program 1 times [2023-11-29 06:07:58,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:58,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025370324] [2023-11-29 06:07:58,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:58,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:58,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:58,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:58,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash 585781524, now seen corresponding path program 1 times [2023-11-29 06:07:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:58,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163469298] [2023-11-29 06:07:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:58,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:58,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:58,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:58,309 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:07:58,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:07:58,310 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:07:58,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:07:58,310 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:07:58,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:58,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:07:58,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:07:58,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2023-11-29 06:07:58,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:07:58,310 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:07:58,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:58,321 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:58,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:58,360 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:07:58,360 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:07:58,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:58,361 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:58,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 06:07:58,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:07:58,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:58,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 06:07:58,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:58,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:58,389 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:58,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 06:07:58,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:07:58,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:58,518 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:07:58,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 06:07:58,523 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:07:58,523 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:07:58,523 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:07:58,523 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:07:58,523 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:07:58,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:58,524 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:07:58,524 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:07:58,524 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2023-11-29 06:07:58,524 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:07:58,524 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:07:58,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:58,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:58,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:58,573 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:07:58,573 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:07:58,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:58,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:58,575 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:58,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 06:07:58,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:07:58,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:07:58,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:07:58,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:07:58,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:07:58,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:07:58,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:07:58,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:07:58,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:07:58,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 06:07:58,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:58,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:58,610 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:58,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 06:07:58,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:07:58,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:07:58,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:07:58,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:07:58,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:07:58,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:07:58,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:07:58,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:07:58,629 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:07:58,632 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 06:07:58,632 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 06:07:58,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:58,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:58,633 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:58,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 06:07:58,637 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:07:58,637 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:07:58,637 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:07:58,637 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2023-11-29 06:07:58,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 06:07:58,642 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:07:58,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:58,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:07:58,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:07:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:58,674 WARN L260 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:07:58,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:07:58,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:07:58,739 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-29 06:07:58,740 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:58,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 48 transitions. Complement of second has 10 states. [2023-11-29 06:07:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-29 06:07:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2023-11-29 06:07:58,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 4 letters. Loop has 5 letters. [2023-11-29 06:07:58,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:07:58,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 9 letters. Loop has 5 letters. [2023-11-29 06:07:58,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:07:58,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 4 letters. Loop has 10 letters. [2023-11-29 06:07:58,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:07:58,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2023-11-29 06:07:58,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 06:07:58,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2023-11-29 06:07:58,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 06:07:58,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 48 transitions. [2023-11-29 06:07:58,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-29 06:07:58,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-11-29 06:07:58,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 48 transitions. [2023-11-29 06:07:58,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:07:58,850 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 48 transitions. [2023-11-29 06:07:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 48 transitions. [2023-11-29 06:07:58,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2023-11-29 06:07:58,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 26 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:58,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 42 transitions. [2023-11-29 06:07:58,854 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 42 transitions. [2023-11-29 06:07:58,854 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 42 transitions. [2023-11-29 06:07:58,854 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 06:07:58,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 42 transitions. [2023-11-29 06:07:58,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-29 06:07:58,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:07:58,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:07:58,856 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-29 06:07:58,856 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2023-11-29 06:07:58,856 INFO L748 eck$LassoCheckResult]: Stem: 224#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 225#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 229#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 232#L18 assume main_~x~0#1 > 0; 230#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 212#L19-4 [2023-11-29 06:07:58,856 INFO L750 eck$LassoCheckResult]: Loop: 212#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 221#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 217#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 218#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 231#L18 assume main_~x~0#1 > 0; 226#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 212#L19-4 [2023-11-29 06:07:58,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:58,857 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2023-11-29 06:07:58,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:58,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085604634] [2023-11-29 06:07:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:58,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:07:58,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:07:58,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085604634] [2023-11-29 06:07:58,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085604634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:07:58,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:07:58,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:07:58,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914293292] [2023-11-29 06:07:58,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:07:58,895 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 06:07:58,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:58,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1642865508, now seen corresponding path program 1 times [2023-11-29 06:07:58,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:58,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847080069] [2023-11-29 06:07:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:58,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:07:58,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:07:58,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847080069] [2023-11-29 06:07:58,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847080069] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:07:58,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423709804] [2023-11-29 06:07:58,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:58,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:07:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:58,939 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:07:58,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:07:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:58,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:07:58,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:07:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:07:58,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:07:58,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:07:58,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423709804] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:07:58,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:07:58,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2023-11-29 06:07:58,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506681724] [2023-11-29 06:07:58,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:07:58,998 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:07:58,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:07:58,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:07:58,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:07:58,998 INFO L87 Difference]: Start difference. First operand 27 states and 42 transitions. cyclomatic complexity: 18 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:07:59,021 INFO L93 Difference]: Finished difference Result 36 states and 54 transitions. [2023-11-29 06:07:59,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2023-11-29 06:07:59,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-29 06:07:59,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 54 transitions. [2023-11-29 06:07:59,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-29 06:07:59,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-11-29 06:07:59,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 54 transitions. [2023-11-29 06:07:59,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:07:59,025 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 54 transitions. [2023-11-29 06:07:59,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 54 transitions. [2023-11-29 06:07:59,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2023-11-29 06:07:59,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 28 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:07:59,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 45 transitions. [2023-11-29 06:07:59,029 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 45 transitions. [2023-11-29 06:07:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:07:59,030 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 45 transitions. [2023-11-29 06:07:59,030 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 06:07:59,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 45 transitions. [2023-11-29 06:07:59,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-29 06:07:59,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:07:59,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:07:59,032 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-29 06:07:59,032 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-29 06:07:59,032 INFO L748 eck$LassoCheckResult]: Stem: 325#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 326#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 323#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 319#L18 assume main_~x~0#1 > 0; 320#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 313#L19-2 [2023-11-29 06:07:59,032 INFO L750 eck$LassoCheckResult]: Loop: 313#L19-2 assume !(main_~x~0#1 == main_~a~0#1);assume (main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 <= main_~x~0#1;assume (main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~a~0#1;assume (main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= 0;assume (main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 > main_~x~0#1 + main_~a~0#1;assume main_#t~nondet2#1 >= -2147483648; 315#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 336#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 335#L18 assume main_~x~0#1 > 0; 327#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 313#L19-2 [2023-11-29 06:07:59,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:59,033 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2023-11-29 06:07:59,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:59,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224439097] [2023-11-29 06:07:59,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:59,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:59,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:59,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:59,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:59,041 INFO L85 PathProgramCache]: Analyzing trace with hash 51579245, now seen corresponding path program 1 times [2023-11-29 06:07:59,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:59,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038218639] [2023-11-29 06:07:59,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:59,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:59,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:59,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:59,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash 981205121, now seen corresponding path program 1 times [2023-11-29 06:07:59,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:59,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034311998] [2023-11-29 06:07:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:59,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:59,067 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:07:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:07:59,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:07:59,229 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:07:59,229 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:07:59,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:07:59,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:07:59,229 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:07:59,229 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:59,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:07:59,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:07:59,230 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Loop [2023-11-29 06:07:59,230 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:07:59,230 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:07:59,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:59,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:59,324 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2023-11-29 06:07:59,575 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:07:59,575 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:07:59,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:59,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:59,576 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:59,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 06:07:59,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:07:59,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:59,593 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:07:59,593 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:07:59,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-29 06:07:59,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:59,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:59,598 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:59,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 06:07:59,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:07:59,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:59,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-29 06:07:59,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:59,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:59,622 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:07:59,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 06:07:59,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:07:59,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:07:59,755 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:07:59,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=4, ULTIMATE.start_main_~a~0#1=-4, ULTIMATE.start_main_#t~nondet2#1=4} Honda state: {ULTIMATE.start_main_~x~0#1=4, ULTIMATE.start_main_~a~0#1=-4, ULTIMATE.start_main_#t~nondet2#1=4} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=-1, ULTIMATE.start_main_#t~nondet2#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0}] Lambdas: [1, 0, 1] Nus: [1, 0] [2023-11-29 06:07:59,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-29 06:07:59,774 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:07:59,774 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:07:59,774 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:07:59,774 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:07:59,775 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:07:59,775 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:07:59,775 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:07:59,775 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:07:59,775 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2023-11-29 06:07:59,775 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:07:59,775 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:07:59,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:59,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:59,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:59,826 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:59,828 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:07:59,879 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2023-11-29 06:08:00,131 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:08:00,131 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:08:00,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:00,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:00,138 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:00,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 06:08:00,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:08:00,149 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:00,161 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:08:00,162 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:08:00,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-29 06:08:00,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:00,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:00,166 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:00,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 06:08:00,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:08:00,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:00,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-29 06:08:00,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:00,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:00,187 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:00,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 06:08:00,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:08:00,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:00,457 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:08:00,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-29 06:08:00,461 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:08:00,461 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:08:00,461 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:08:00,461 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:08:00,461 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:08:00,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:00,461 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:08:00,461 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:08:00,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2023-11-29 06:08:00,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:08:00,461 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:08:00,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:00,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:00,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:00,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:00,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:00,559 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2023-11-29 06:08:00,826 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:08:00,826 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:08:00,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:00,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:00,832 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:00,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 06:08:00,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:00,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:00,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:08:00,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:00,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:08:00,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:00,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:08:00,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:08:00,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:08:00,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-29 06:08:00,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:00,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:00,853 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:00,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-29 06:08:00,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:00,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:00,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:08:00,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:00,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:08:00,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:00,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:08:00,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:08:00,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:08:00,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-29 06:08:00,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:00,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:00,872 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:00,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-29 06:08:00,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:00,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:00,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:08:00,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:00,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:08:00,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:00,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:08:00,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:08:00,888 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:08:00,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-29 06:08:00,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:00,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:00,893 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:00,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-29 06:08:00,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:00,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:00,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:00,906 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2023-11-29 06:08:00,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:00,952 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2023-11-29 06:08:00,952 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2023-11-29 06:08:01,085 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:08:01,168 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2023-11-29 06:08:01,168 INFO L444 ModelExtractionUtils]: 22 out of 37 variables were initially zero. Simplification set additionally 12 variables to zero. [2023-11-29 06:08:01,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:01,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:01,170 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:01,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-29 06:08:01,175 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:08:01,191 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2023-11-29 06:08:01,191 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:08:01,191 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0] [2023-11-29 06:08:01,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-29 06:08:01,198 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-29 06:08:01,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:01,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:08:01,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:01,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:08:01,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:01,352 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 5 loop predicates [2023-11-29 06:08:01,352 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 45 transitions. cyclomatic complexity: 19 Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:01,451 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 45 transitions. cyclomatic complexity: 19. Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 71 states and 100 transitions. Complement of second has 12 states. [2023-11-29 06:08:01,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 3 non-accepting loop states 2 accepting loop states [2023-11-29 06:08:01,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:01,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 18 transitions. [2023-11-29 06:08:01,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 18 transitions. Stem has 5 letters. Loop has 5 letters. [2023-11-29 06:08:01,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:01,453 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 06:08:01,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:01,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:08:01,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:01,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:08:01,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:01,599 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 5 loop predicates [2023-11-29 06:08:01,599 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 45 transitions. cyclomatic complexity: 19 Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:01,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-29 06:08:01,822 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 45 transitions. cyclomatic complexity: 19. Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 91 states and 130 transitions. Complement of second has 20 states. [2023-11-29 06:08:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 3 stem states 7 non-accepting loop states 2 accepting loop states [2023-11-29 06:08:01,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:01,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 23 transitions. [2023-11-29 06:08:01,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 5 letters. [2023-11-29 06:08:01,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:01,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 10 letters. Loop has 5 letters. [2023-11-29 06:08:01,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:01,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 10 letters. [2023-11-29 06:08:01,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:01,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 130 transitions. [2023-11-29 06:08:01,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-11-29 06:08:01,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 82 states and 117 transitions. [2023-11-29 06:08:01,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2023-11-29 06:08:01,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2023-11-29 06:08:01,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 117 transitions. [2023-11-29 06:08:01,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:08:01,830 INFO L218 hiAutomatonCegarLoop]: Abstraction has 82 states and 117 transitions. [2023-11-29 06:08:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 117 transitions. [2023-11-29 06:08:01,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 56. [2023-11-29 06:08:01,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.5) internal successors, (84), 55 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:01,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 84 transitions. [2023-11-29 06:08:01,835 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 84 transitions. [2023-11-29 06:08:01,835 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 84 transitions. [2023-11-29 06:08:01,835 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-29 06:08:01,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 84 transitions. [2023-11-29 06:08:01,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-29 06:08:01,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:08:01,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:08:01,837 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-29 06:08:01,837 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2023-11-29 06:08:01,838 INFO L748 eck$LassoCheckResult]: Stem: 665#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 666#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 670#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 686#L18 assume main_~x~0#1 > 0; 683#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 678#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~x~0#1; 654#L19-4 [2023-11-29 06:08:01,838 INFO L750 eck$LassoCheckResult]: Loop: 654#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 663#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 659#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 660#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 700#L18 assume main_~x~0#1 > 0; 671#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 654#L19-4 [2023-11-29 06:08:01,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:01,838 INFO L85 PathProgramCache]: Analyzing trace with hash 889692489, now seen corresponding path program 1 times [2023-11-29 06:08:01,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:08:01,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030922043] [2023-11-29 06:08:01,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:01,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:08:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:01,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:08:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:01,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:08:01,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:01,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1642865508, now seen corresponding path program 2 times [2023-11-29 06:08:01,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:08:01,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367636533] [2023-11-29 06:08:01,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:01,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:08:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:01,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:01,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:08:01,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367636533] [2023-11-29 06:08:01,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367636533] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:08:01,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531840321] [2023-11-29 06:08:01,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:08:01,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:08:01,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:01,880 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:08:01,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 06:08:01,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:08:01,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:08:01,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:08:01,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:01,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:01,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:08:01,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:01,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531840321] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:08:01,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:08:01,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2023-11-29 06:08:01,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736013775] [2023-11-29 06:08:01,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:08:01,926 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:08:01,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:08:01,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:08:01,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:08:01,927 INFO L87 Difference]: Start difference. First operand 56 states and 84 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:08:01,950 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2023-11-29 06:08:01,950 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 60 transitions. [2023-11-29 06:08:01,951 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 06:08:01,952 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 33 states and 42 transitions. [2023-11-29 06:08:01,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-11-29 06:08:01,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-29 06:08:01,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2023-11-29 06:08:01,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:08:01,953 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 42 transitions. [2023-11-29 06:08:01,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2023-11-29 06:08:01,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2023-11-29 06:08:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:01,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-11-29 06:08:01,955 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-11-29 06:08:01,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:08:01,957 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-11-29 06:08:01,957 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-29 06:08:01,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2023-11-29 06:08:01,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 06:08:01,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:08:01,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:08:01,957 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:08:01,957 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 06:08:01,958 INFO L748 eck$LassoCheckResult]: Stem: 804#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 805#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 808#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 813#L18 assume main_~x~0#1 > 0; 810#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 794#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~x~0#1; 795#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 800#L18-2 [2023-11-29 06:08:01,958 INFO L750 eck$LassoCheckResult]: Loop: 800#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 799#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 800#L18-2 [2023-11-29 06:08:01,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:01,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663409, now seen corresponding path program 2 times [2023-11-29 06:08:01,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:08:01,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995076306] [2023-11-29 06:08:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:01,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:08:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:01,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:08:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:01,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:08:01,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:01,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 2 times [2023-11-29 06:08:01,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:08:01,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342600522] [2023-11-29 06:08:01,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:01,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:08:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:01,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:08:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:01,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:08:01,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:01,971 INFO L85 PathProgramCache]: Analyzing trace with hash 585781538, now seen corresponding path program 1 times [2023-11-29 06:08:01,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:08:01,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006962476] [2023-11-29 06:08:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:01,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:08:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:02,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:08:02,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006962476] [2023-11-29 06:08:02,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006962476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:08:02,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:08:02,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:08:02,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362016851] [2023-11-29 06:08:02,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:08:02,029 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:08:02,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:08:02,030 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:08:02,030 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:08:02,030 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:08:02,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:08:02,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:08:02,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2023-11-29 06:08:02,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:08:02,030 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:08:02,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,083 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:08:02,083 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:08:02,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,085 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-29 06:08:02,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:08:02,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:02,104 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:08:02,104 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:08:02,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-29 06:08:02,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,109 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-29 06:08:02,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:08:02,113 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:02,127 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:08:02,127 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:08:02,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-29 06:08:02,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,132 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-29 06:08:02,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:08:02,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:02,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-29 06:08:02,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,158 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-29 06:08:02,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:08:02,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:02,186 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:08:02,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-29 06:08:02,190 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:08:02,190 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:08:02,190 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:08:02,190 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:08:02,190 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:08:02,190 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,190 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:08:02,190 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:08:02,190 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2023-11-29 06:08:02,190 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:08:02,190 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:08:02,191 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,193 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,197 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,244 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:08:02,245 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:08:02,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,246 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-29 06:08:02,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:02,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:02,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:08:02,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:02,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:08:02,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:02,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:08:02,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:08:02,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:08:02,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-29 06:08:02,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,270 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-29 06:08:02,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:02,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:02,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:08:02,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:02,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:08:02,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:02,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:08:02,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:08:02,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:08:02,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-11-29 06:08:02,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,293 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-29 06:08:02,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:02,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:02,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:08:02,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:02,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:08:02,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:02,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:08:02,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:08:02,313 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:08:02,315 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-29 06:08:02,315 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 06:08:02,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,319 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-29 06:08:02,329 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:08:02,329 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:08:02,329 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:08:02,329 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 06:08:02,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-29 06:08:02,334 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:08:02,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:08:02,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,359 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:08:02,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:02,363 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 06:08:02,363 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:02,384 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 111 transitions. Complement of second has 5 states. [2023-11-29 06:08:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 06:08:02,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-29 06:08:02,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-29 06:08:02,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:02,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-29 06:08:02,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:02,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-29 06:08:02,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:02,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 111 transitions. [2023-11-29 06:08:02,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 06:08:02,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 60 states and 79 transitions. [2023-11-29 06:08:02,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2023-11-29 06:08:02,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-29 06:08:02,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2023-11-29 06:08:02,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:08:02,393 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2023-11-29 06:08:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2023-11-29 06:08:02,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 31. [2023-11-29 06:08:02,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2023-11-29 06:08:02,397 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 41 transitions. [2023-11-29 06:08:02,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:08:02,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:08:02,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:08:02,397 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:02,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:08:02,415 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2023-11-29 06:08:02,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 46 transitions. [2023-11-29 06:08:02,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 06:08:02,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 34 states and 42 transitions. [2023-11-29 06:08:02,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-11-29 06:08:02,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-11-29 06:08:02,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 42 transitions. [2023-11-29 06:08:02,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:08:02,417 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-11-29 06:08:02,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 42 transitions. [2023-11-29 06:08:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2023-11-29 06:08:02,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2023-11-29 06:08:02,420 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 39 transitions. [2023-11-29 06:08:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:08:02,421 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2023-11-29 06:08:02,421 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-29 06:08:02,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2023-11-29 06:08:02,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 06:08:02,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:08:02,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:08:02,422 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 06:08:02,422 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 06:08:02,422 INFO L748 eck$LassoCheckResult]: Stem: 1041#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1042#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 1043#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1050#L18 assume main_~x~0#1 > 0; 1049#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1028#L19-2 assume !(main_~x~0#1 == main_~a~0#1);assume (main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 <= main_~x~0#1;assume (main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~a~0#1;assume (main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= 0;assume (main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 > main_~x~0#1 + main_~a~0#1;assume main_#t~nondet2#1 >= -2147483648; 1030#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 1037#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1038#L18 assume main_~x~0#1 > 0; 1044#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 1045#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 1034#L18-2 [2023-11-29 06:08:02,423 INFO L750 eck$LassoCheckResult]: Loop: 1034#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1033#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1034#L18-2 [2023-11-29 06:08:02,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:02,423 INFO L85 PathProgramCache]: Analyzing trace with hash 352587643, now seen corresponding path program 1 times [2023-11-29 06:08:02,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:08:02,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554834967] [2023-11-29 06:08:02,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:02,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:08:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:02,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:08:02,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554834967] [2023-11-29 06:08:02,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554834967] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:08:02,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779398036] [2023-11-29 06:08:02,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:02,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:08:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,470 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 06:08:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:08:02,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:02,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:08:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:02,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779398036] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:08:02,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:08:02,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-11-29 06:08:02,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633123437] [2023-11-29 06:08:02,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:08:02,558 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 06:08:02,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:02,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 3 times [2023-11-29 06:08:02,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:08:02,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28566712] [2023-11-29 06:08:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:08:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:02,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:08:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:02,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:08:02,585 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:08:02,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:08:02,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:08:02,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:08:02,585 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:08:02,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:08:02,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:08:02,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2023-11-29 06:08:02,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:08:02,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:08:02,586 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,637 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:08:02,637 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:08:02,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,641 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-29 06:08:02,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:08:02,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:02,660 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:08:02,660 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:08:02,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-11-29 06:08:02,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,665 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-29 06:08:02,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:08:02,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:02,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-29 06:08:02,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,686 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-29 06:08:02,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:08:02,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:02,719 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:08:02,719 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=-6}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=6}] Lambdas: [1, 7, 1] Nus: [0, 1] [2023-11-29 06:08:02,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2023-11-29 06:08:02,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,723 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-29 06:08:02,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:08:02,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:02,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-29 06:08:02,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,739 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-29 06:08:02,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:08:02,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:08:02,762 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:08:02,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-11-29 06:08:02,765 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:08:02,765 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:08:02,765 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:08:02,765 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:08:02,765 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:08:02,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:08:02,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:08:02,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2023-11-29 06:08:02,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:08:02,765 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:08:02,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,769 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:08:02,804 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:08:02,804 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:08:02,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,805 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-29 06:08:02,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:02,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:02,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:08:02,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:02,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:08:02,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:02,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:08:02,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:08:02,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:08:02,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-11-29 06:08:02,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,823 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-29 06:08:02,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:02,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:02,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:08:02,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:02,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:08:02,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:02,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:08:02,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:08:02,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:08:02,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-11-29 06:08:02,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,840 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-29 06:08:02,842 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:08:02,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:08:02,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:08:02,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:08:02,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:08:02,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:08:02,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:08:02,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:08:02,854 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:08:02,856 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 06:08:02,857 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 06:08:02,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:08:02,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:02,858 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:02,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-29 06:08:02,859 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:08:02,859 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:08:02,859 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:08:02,860 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 06:08:02,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-11-29 06:08:02,863 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:08:02,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:08:02,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,891 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:08:02,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:02,893 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 06:08:02,893 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:02,905 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 92 transitions. Complement of second has 5 states. [2023-11-29 06:08:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 06:08:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:02,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2023-11-29 06:08:02,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-29 06:08:02,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:02,908 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 06:08:02,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:08:02,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,944 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:08:02,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:02,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:02,946 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 06:08:02,946 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:02,955 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 92 transitions. Complement of second has 5 states. [2023-11-29 06:08:02,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 06:08:02,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2023-11-29 06:08:02,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-29 06:08:02,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:02,956 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 06:08:02,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:08:02,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:02,989 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:08:02,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:02,991 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 06:08:02,991 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:03,012 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 71 transitions. Complement of second has 4 states. [2023-11-29 06:08:03,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 06:08:03,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2023-11-29 06:08:03,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-29 06:08:03,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:03,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 13 letters. Loop has 2 letters. [2023-11-29 06:08:03,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:03,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 4 letters. [2023-11-29 06:08:03,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:08:03,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 71 transitions. [2023-11-29 06:08:03,015 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 06:08:03,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 0 states and 0 transitions. [2023-11-29 06:08:03,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 06:08:03,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 06:08:03,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 06:08:03,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:08:03,015 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:08:03,015 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:08:03,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:08:03,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:08:03,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:08:03,016 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:08:03,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:08:03,016 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-29 06:08:03,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-29 06:08:03,016 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 06:08:03,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 06:08:03,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 06:08:03,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 06:08:03,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 06:08:03,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:08:03,017 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:08:03,017 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:08:03,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:08:03,017 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:08:03,018 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-29 06:08:03,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:08:03,018 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 06:08:03,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 06:08:03,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:08:03 BoogieIcfgContainer [2023-11-29 06:08:03,025 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 06:08:03,025 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:08:03,025 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:08:03,026 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:08:03,026 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:07:57" (3/4) ... [2023-11-29 06:08:03,028 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:08:03,029 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:08:03,029 INFO L158 Benchmark]: Toolchain (without parser) took 6462.49ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 123.8MB in the beginning and 60.2MB in the end (delta: 63.6MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. [2023-11-29 06:08:03,029 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:08:03,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.90ms. Allocated memory is still 153.1MB. Free memory was 123.8MB in the beginning and 114.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:08:03,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.12ms. Allocated memory is still 153.1MB. Free memory was 114.4MB in the beginning and 112.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:08:03,030 INFO L158 Benchmark]: Boogie Preprocessor took 27.07ms. Allocated memory is still 153.1MB. Free memory was 112.8MB in the beginning and 111.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:08:03,031 INFO L158 Benchmark]: RCFGBuilder took 237.89ms. Allocated memory is still 153.1MB. Free memory was 111.3MB in the beginning and 101.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:08:03,031 INFO L158 Benchmark]: BuchiAutomizer took 5998.21ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 101.8MB in the beginning and 61.2MB in the end (delta: 40.6MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2023-11-29 06:08:03,031 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 197.1MB. Free memory was 61.2MB in the beginning and 60.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:08:03,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 160.90ms. Allocated memory is still 153.1MB. Free memory was 123.8MB in the beginning and 114.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.12ms. Allocated memory is still 153.1MB. Free memory was 114.4MB in the beginning and 112.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.07ms. Allocated memory is still 153.1MB. Free memory was 112.8MB in the beginning and 111.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 237.89ms. Allocated memory is still 153.1MB. Free memory was 111.3MB in the beginning and 101.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5998.21ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 101.8MB in the beginning and 61.2MB in the end (delta: 40.6MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 197.1MB. Free memory was 61.2MB in the beginning and 60.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 10 terminating modules (5 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (-1 * x) and consists of 4 locations. One deterministic module has affine ranking function a and consists of 6 locations. One deterministic module has affine ranking function a and consists of 12 locations. One deterministic module has affine ranking function (-1 * x) and consists of 3 locations. One nondeterministic module has affine ranking function (-1 * x) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 4.5s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 76 StatesRemovedByMinimization, 7 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 [3, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 86 mSDtfsCounter, 245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI1 SILT1 lasso1 LassoPreprocessingBenchmarks: Lassos: inital30 mio100 ax100 hnf100 lsp90 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf95 smp81 dnf476 smp75 tf108 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 299ms VariablesStem: 2 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 06:08:03,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-29 06:08:03,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 06:08:03,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-29 06:08:03,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 06:08:03,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 06:08:04,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_716c8a1e-3f56-43b3-a0c7-fbc9d7e4d52e/bin/uautomizer-verify-BQ2R08f2Ya/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