./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_22.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU --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 2aebec197cf7bd355d2eb5f718c983de149eae8f5ff2da107813d58a220d4744 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:59,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:59,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 21:59:59,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:59,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:59,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:59,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:59,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:59,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:59,468 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:59,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:59,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:59,469 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:59,469 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 21:59:59,471 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 21:59:59,472 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 21:59:59,472 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 21:59:59,472 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 21:59:59,473 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 21:59:59,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:59,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 21:59:59,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:59,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:59,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 21:59:59,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 21:59:59,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 21:59:59,478 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:59,479 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:59,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:59,479 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 21:59:59,479 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:59,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:59,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:59,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:59,480 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:59,483 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 21:59:59,483 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_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2aebec197cf7bd355d2eb5f718c983de149eae8f5ff2da107813d58a220d4744 [2024-10-31 21:59:59,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:59,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:59,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:59,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:59,836 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:59,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-restricted-15/NO_22.c Unable to find full path for "g++" [2024-10-31 22:00:02,182 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:02,382 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:02,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/sv-benchmarks/c/termination-restricted-15/NO_22.c [2024-10-31 22:00:02,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/data/39be84e20/e4c79863359d425f896b6a2fd65e7ff8/FLAG6a64c6dba [2024-10-31 22:00:02,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/data/39be84e20/e4c79863359d425f896b6a2fd65e7ff8 [2024-10-31 22:00:02,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:02,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:02,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:02,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:02,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:02,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42907227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02, skipping insertion in model container [2024-10-31 22:00:02,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:02,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:02,699 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:02,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:02,735 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:02,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02 WrapperNode [2024-10-31 22:00:02,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:02,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:02,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:02,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:02,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,768 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2024-10-31 22:00:02,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:02,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:02,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:02,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:02,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,792 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:00:02,793 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,793 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:02,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:02,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:02,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:02,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (1/1) ... [2024-10-31 22:00:02,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:02,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:02,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:02,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:02,979 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:02,982 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:03,057 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-10-31 22:00:03,057 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:03,073 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:03,074 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:00:03,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:03 BoogieIcfgContainer [2024-10-31 22:00:03,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:03,076 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:00:03,077 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:00:03,081 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:00:03,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:00:03,082 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:00:02" (1/3) ... [2024-10-31 22:00:03,084 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52889d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:00:03, skipping insertion in model container [2024-10-31 22:00:03,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:00:03,084 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:02" (2/3) ... [2024-10-31 22:00:03,085 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52889d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:00:03, skipping insertion in model container [2024-10-31 22:00:03,085 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:00:03,085 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:03" (3/3) ... [2024-10-31 22:00:03,087 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_22.c [2024-10-31 22:00:03,173 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:00:03,173 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:00:03,173 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:00:03,173 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:00:03,174 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:00:03,175 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:00:03,175 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:00:03,176 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:00:03,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:03,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:00:03,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:03,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:03,218 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:00:03,219 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:00:03,221 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:00:03,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:03,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:00:03,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:03,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:03,226 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:00:03,227 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:00:03,237 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 3#L10-2true [2024-10-31 22:00:03,238 INFO L747 eck$LassoCheckResult]: Loop: 3#L10-2true assume !!(main_~i~0#1 < 100); 5#L10true assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 3#L10-2true [2024-10-31 22:00:03,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:03,250 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:00:03,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:03,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6721154] [2024-10-31 22:00:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:03,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:03,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:03,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:03,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:03,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-10-31 22:00:03,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:03,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668448033] [2024-10-31 22:00:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:03,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:03,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:03,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:03,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-10-31 22:00:03,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:03,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382700699] [2024-10-31 22:00:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:03,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:03,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:03,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382700699] [2024-10-31 22:00:03,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382700699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:03,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:03,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:03,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909219362] [2024-10-31 22:00:03,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:03,788 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:03,789 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:03,789 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:03,789 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:03,789 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:00:03,790 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,790 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:03,790 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:03,790 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration1_Loop [2024-10-31 22:00:03,790 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:03,791 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:03,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,944 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:03,945 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:00:03,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:00:03,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:03,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:03,994 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:03,994 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:04,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:00:04,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:00:04,029 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:04,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:04,062 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:04,062 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:04,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:00:04,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:00:04,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:04,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:04,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:00:04,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:00:04,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:00:04,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:04,180 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:00:04,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:04,205 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:04,205 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:04,205 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:04,205 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:04,205 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:00:04,206 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,206 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:04,206 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:04,206 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration1_Loop [2024-10-31 22:00:04,206 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:04,207 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:04,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:04,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:04,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:04,330 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:04,336 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:00:04,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:00:04,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:04,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:04,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:04,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:04,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:04,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:00:04,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:00:04,408 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:04,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:04,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:00:04,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:04,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:04,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:04,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:04,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:04,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:00:04,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:00:04,483 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:04,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:04,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,512 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:00:04,516 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:04,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:04,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:04,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:04,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:04,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:04,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:04,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:04,549 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:00:04,554 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:00:04,555 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:00:04,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,564 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:00:04,566 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:00:04,567 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:00:04,567 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:00:04,567 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:00:04,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:04,588 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:00:04,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:04,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,667 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:04,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:04,738 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:00:04,741 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) 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) [2024-10-31 22:00:04,796 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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). 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 17 states and 24 transitions. Complement of second has 6 states. [2024-10-31 22:00:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:00:04,811 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) [2024-10-31 22:00:04,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 22:00:04,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-31 22:00:04,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:04,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 22:00:04,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:04,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 22:00:04,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:04,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2024-10-31 22:00:04,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:00:04,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 8 states and 11 transitions. [2024-10-31 22:00:04,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:00:04,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:00:04,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-10-31 22:00:04,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:04,832 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-31 22:00:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-10-31 22:00:04,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-10-31 22:00:04,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2024-10-31 22:00:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-10-31 22:00:04,869 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-31 22:00:04,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:04,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:04,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:04,875 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) 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) [2024-10-31 22:00:04,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:04,891 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2024-10-31 22:00:04,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2024-10-31 22:00:04,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:00:04,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2024-10-31 22:00:04,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:00:04,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:00:04,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2024-10-31 22:00:04,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:00:04,894 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2024-10-31 22:00:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2024-10-31 22:00:04,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2024-10-31 22:00:04,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:04,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2024-10-31 22:00:04,897 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2024-10-31 22:00:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:04,899 INFO L425 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2024-10-31 22:00:04,899 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:00:04,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2024-10-31 22:00:04,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:00:04,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:04,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:04,901 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:00:04,901 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:00:04,901 INFO L745 eck$LassoCheckResult]: Stem: 79#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 80#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 81#L10-2 assume !!(main_~i~0#1 < 100); 78#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 76#L10-2 [2024-10-31 22:00:04,902 INFO L747 eck$LassoCheckResult]: Loop: 76#L10-2 assume !!(main_~i~0#1 < 100); 77#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 76#L10-2 [2024-10-31 22:00:04,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,903 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-10-31 22:00:04,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:04,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586116381] [2024-10-31 22:00:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:04,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:04,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:04,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:04,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2024-10-31 22:00:04,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:04,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136511926] [2024-10-31 22:00:04,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:04,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:04,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:04,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:04,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,944 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2024-10-31 22:00:04,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:04,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53078985] [2024-10-31 22:00:04,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:04,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:05,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:05,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53078985] [2024-10-31 22:00:05,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53078985] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:05,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324227541] [2024-10-31 22:00:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:05,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:05,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:05,083 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:05,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:00:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:00:05,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:05,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:05,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:05,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324227541] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:05,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:05,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-31 22:00:05,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823532161] [2024-10-31 22:00:05,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:05,299 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:05,300 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:05,300 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:05,300 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:05,300 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:00:05,301 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:05,301 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:05,301 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:05,301 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration2_Loop [2024-10-31 22:00:05,301 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:05,302 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:05,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:05,310 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:05,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:05,398 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:05,399 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:00:05,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:05,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:05,403 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:05,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:00:05,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:05,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:05,440 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:05,441 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:05,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:00:05,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:05,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:05,467 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:05,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:00:05,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:05,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:05,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:00:05,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:05,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:05,519 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:05,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:00:05,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:00:05,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:05,549 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:00:05,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:00:05,572 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:05,572 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:05,572 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:05,573 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:05,573 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:00:05,573 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:05,573 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:05,573 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:05,573 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration2_Loop [2024-10-31 22:00:05,573 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:05,574 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:05,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:05,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:05,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:05,673 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:05,673 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:00:05,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:05,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:05,680 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:05,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:00:05,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:05,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:05,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:05,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:05,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:05,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:00:05,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:00:05,717 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:05,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:00:05,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:05,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:05,744 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:05,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:00:05,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:05,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:05,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:05,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:05,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:05,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:05,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:05,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:05,768 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:00:05,773 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:00:05,774 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:00:05,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:05,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:05,777 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:05,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:00:05,781 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:00:05,781 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:00:05,781 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:00:05,781 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:00:05,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:00:05,807 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:00:05,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:05,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,871 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:05,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:05,879 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:00:05,880 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-10-31 22:00:05,902 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Result 10 states and 13 transitions. Complement of second has 5 states. [2024-10-31 22:00:05,904 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 [2024-10-31 22:00:05,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-10-31 22:00:05,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-10-31 22:00:05,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 22:00:05,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:05,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:00:05,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:05,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-31 22:00:05,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:05,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2024-10-31 22:00:05,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:00:05,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2024-10-31 22:00:05,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-31 22:00:05,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-31 22:00:05,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2024-10-31 22:00:05,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:05,921 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-31 22:00:05,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2024-10-31 22:00:05,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-10-31 22:00:05,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:05,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-10-31 22:00:05,924 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-31 22:00:05,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:05,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:05,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:05,927 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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) [2024-10-31 22:00:05,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:05,968 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2024-10-31 22:00:05,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2024-10-31 22:00:05,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:00:05,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2024-10-31 22:00:05,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 22:00:05,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 22:00:05,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2024-10-31 22:00:05,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:00:05,973 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-10-31 22:00:05,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2024-10-31 22:00:05,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-31 22:00:05,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-10-31 22:00:05,976 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-10-31 22:00:05,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:05,977 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-10-31 22:00:05,977 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:00:05,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2024-10-31 22:00:05,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:00:05,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:05,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:05,979 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1] [2024-10-31 22:00:05,979 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:00:05,980 INFO L745 eck$LassoCheckResult]: Stem: 189#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 190#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 191#L10-2 assume !!(main_~i~0#1 < 100); 188#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 186#L10-2 assume !!(main_~i~0#1 < 100); 187#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 197#L10-2 assume !!(main_~i~0#1 < 100); 196#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 195#L10-2 assume !!(main_~i~0#1 < 100); 194#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 193#L10-2 [2024-10-31 22:00:05,980 INFO L747 eck$LassoCheckResult]: Loop: 193#L10-2 assume !!(main_~i~0#1 < 100); 192#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 193#L10-2 [2024-10-31 22:00:05,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:05,981 INFO L85 PathProgramCache]: Analyzing trace with hash 742492623, now seen corresponding path program 2 times [2024-10-31 22:00:05,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:05,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823346607] [2024-10-31 22:00:05,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:05,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:05,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:06,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:06,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:06,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2024-10-31 22:00:06,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:06,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522781236] [2024-10-31 22:00:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:06,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:06,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:06,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:06,019 INFO L85 PathProgramCache]: Analyzing trace with hash 570839924, now seen corresponding path program 2 times [2024-10-31 22:00:06,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:06,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212627674] [2024-10-31 22:00:06,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:06,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:06,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212627674] [2024-10-31 22:00:06,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212627674] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:06,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583381378] [2024-10-31 22:00:06,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:06,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:06,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:06,214 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:06,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-31 22:00:06,269 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:06,270 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:06,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:00:06,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:06,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:06,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583381378] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:06,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:06,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-31 22:00:06,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149693849] [2024-10-31 22:00:06,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:06,499 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:06,499 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:06,499 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:06,499 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:06,499 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:00:06,499 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:06,500 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:06,500 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:06,500 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration3_Loop [2024-10-31 22:00:06,500 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:06,500 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:06,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:06,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:06,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:06,587 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:06,587 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:00:06,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:06,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:06,596 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:06,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:00:06,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:06,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:06,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:06,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:06,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:06,650 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:06,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:00:06,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:00:06,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:06,681 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:00:06,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:00:06,705 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:06,705 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:06,705 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:06,706 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:06,706 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:00:06,706 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:06,706 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:06,706 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:06,706 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration3_Loop [2024-10-31 22:00:06,706 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:06,706 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:06,707 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:06,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:06,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:06,780 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:06,780 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:00:06,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:06,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:06,783 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:06,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:00:06,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:06,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:06,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:06,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:06,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:06,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:06,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:06,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:06,810 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:00:06,816 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:00:06,816 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:00:06,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:06,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:06,819 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:06,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:00:06,822 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:00:06,822 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:00:06,823 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:00:06,823 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:00:06,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 22:00:06,847 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:00:06,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:06,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:06,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,951 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:06,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:06,958 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:00:06,958 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:06,970 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 14 transitions. Complement of second has 5 states. [2024-10-31 22:00:06,971 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 [2024-10-31 22:00:06,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-31 22:00:06,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-31 22:00:06,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:06,972 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:06,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:07,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:07,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:07,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,072 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:07,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:07,082 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:00:07,085 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,093 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 14 transitions. Complement of second has 5 states. [2024-10-31 22:00:07,094 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 [2024-10-31 22:00:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-31 22:00:07,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-31 22:00:07,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:07,096 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:07,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:07,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,163 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:07,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:07,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:07,167 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:00:07,168 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 19 transitions. Complement of second has 4 states. [2024-10-31 22:00:07,185 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 [2024-10-31 22:00:07,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-10-31 22:00:07,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-31 22:00:07,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:07,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 12 letters. Loop has 2 letters. [2024-10-31 22:00:07,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:07,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 22:00:07,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:07,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2024-10-31 22:00:07,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:00:07,189 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 16 transitions. [2024-10-31 22:00:07,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-31 22:00:07,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 22:00:07,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2024-10-31 22:00:07,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:07,190 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-10-31 22:00:07,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2024-10-31 22:00:07,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-10-31 22:00:07,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 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) [2024-10-31 22:00:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2024-10-31 22:00:07,192 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-10-31 22:00:07,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:07,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:00:07,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:00:07,193 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:07,256 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2024-10-31 22:00:07,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 34 transitions. [2024-10-31 22:00:07,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:00:07,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 28 transitions. [2024-10-31 22:00:07,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-10-31 22:00:07,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2024-10-31 22:00:07,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 28 transitions. [2024-10-31 22:00:07,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:07,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-10-31 22:00:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 28 transitions. [2024-10-31 22:00:07,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-10-31 22:00:07,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.08) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2024-10-31 22:00:07,261 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-10-31 22:00:07,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:00:07,263 INFO L425 stractBuchiCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-10-31 22:00:07,263 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:00:07,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 27 transitions. [2024-10-31 22:00:07,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:00:07,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:07,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:07,265 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 1, 1] [2024-10-31 22:00:07,265 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:00:07,265 INFO L745 eck$LassoCheckResult]: Stem: 502#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 503#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 504#L10-2 assume !!(main_~i~0#1 < 100); 501#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 496#L10-2 assume !!(main_~i~0#1 < 100); 497#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 520#L10-2 assume !!(main_~i~0#1 < 100); 519#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 518#L10-2 assume !!(main_~i~0#1 < 100); 517#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 516#L10-2 assume !!(main_~i~0#1 < 100); 515#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 514#L10-2 assume !!(main_~i~0#1 < 100); 513#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 512#L10-2 assume !!(main_~i~0#1 < 100); 511#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 510#L10-2 assume !!(main_~i~0#1 < 100); 509#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 508#L10-2 assume !!(main_~i~0#1 < 100); 507#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 506#L10-2 assume !!(main_~i~0#1 < 100); 500#L10 [2024-10-31 22:00:07,266 INFO L747 eck$LassoCheckResult]: Loop: 500#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 505#L10-2 assume !!(main_~i~0#1 < 100); 500#L10 [2024-10-31 22:00:07,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,266 INFO L85 PathProgramCache]: Analyzing trace with hash -926509747, now seen corresponding path program 3 times [2024-10-31 22:00:07,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73396582] [2024-10-31 22:00:07,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:07,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:07,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:07,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2024-10-31 22:00:07,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556876850] [2024-10-31 22:00:07,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:07,329 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:07,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:07,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1317636150, now seen corresponding path program 4 times [2024-10-31 22:00:07,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267150639] [2024-10-31 22:00:07,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:07,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:07,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:07,405 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:07,405 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:07,405 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:07,405 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:07,405 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:00:07,405 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,406 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:07,406 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:07,406 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration4_Loop [2024-10-31 22:00:07,406 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:07,406 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:07,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,467 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:07,467 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:00:07,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,470 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:00:07,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:07,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:07,505 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:07,506 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:07,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-31 22:00:07,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,526 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:00:07,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:07,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:07,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:07,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,565 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:00:07,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:00:07,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:07,616 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:00:07,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-10-31 22:00:07,621 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:07,621 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:07,621 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:07,622 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:07,622 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:00:07,622 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,622 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:07,622 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:07,622 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration4_Loop [2024-10-31 22:00:07,622 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:07,622 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:07,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,703 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:07,703 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:00:07,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,705 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:00:07,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:07,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:07,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:07,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:07,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:07,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:07,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:07,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:07,732 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:00:07,735 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:00:07,735 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:00:07,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,738 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:00:07,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:00:07,741 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:00:07,741 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:00:07,741 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 99 Supporting invariants [] [2024-10-31 22:00:07,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-31 22:00:07,768 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:00:07,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:07,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,887 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:07,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:07,921 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:00:07,921 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,941 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2024-10-31 22:00:07,942 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 [2024-10-31 22:00:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-10-31 22:00:07,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 2 letters. [2024-10-31 22:00:07,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:07,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 23 letters. Loop has 2 letters. [2024-10-31 22:00:07,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:07,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 4 letters. [2024-10-31 22:00:07,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:07,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 42 transitions. [2024-10-31 22:00:07,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:00:07,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 31 transitions. [2024-10-31 22:00:07,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:00:07,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:00:07,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2024-10-31 22:00:07,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:07,949 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2024-10-31 22:00:07,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2024-10-31 22:00:07,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-10-31 22:00:07,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-10-31 22:00:07,955 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-10-31 22:00:07,955 INFO L425 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-10-31 22:00:07,956 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:00:07,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2024-10-31 22:00:07,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:00:07,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:07,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:07,958 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 1, 1, 1] [2024-10-31 22:00:07,958 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:00:07,958 INFO L745 eck$LassoCheckResult]: Stem: 656#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 657#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 658#L10-2 assume !!(main_~i~0#1 < 100); 653#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 654#L10-2 assume !!(main_~i~0#1 < 100); 655#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 651#L10-2 assume !!(main_~i~0#1 < 100); 652#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 674#L10-2 assume !!(main_~i~0#1 < 100); 673#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 672#L10-2 assume !!(main_~i~0#1 < 100); 671#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 670#L10-2 assume !!(main_~i~0#1 < 100); 669#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 668#L10-2 assume !!(main_~i~0#1 < 100); 667#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 666#L10-2 assume !!(main_~i~0#1 < 100); 665#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 664#L10-2 assume !!(main_~i~0#1 < 100); 663#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 662#L10-2 assume !!(main_~i~0#1 < 100); 661#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 660#L10-2 assume !!(main_~i~0#1 < 100); 649#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 659#L10-2 assume !!(main_~i~0#1 < 100); 650#L10 [2024-10-31 22:00:07,958 INFO L747 eck$LassoCheckResult]: Loop: 650#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 648#L10-2 assume !!(main_~i~0#1 < 100); 650#L10 [2024-10-31 22:00:07,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,961 INFO L85 PathProgramCache]: Analyzing trace with hash 767012677, now seen corresponding path program 3 times [2024-10-31 22:00:07,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523329324] [2024-10-31 22:00:07,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:08,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:08,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523329324] [2024-10-31 22:00:08,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523329324] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:08,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276326847] [2024-10-31 22:00:08,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:00:08,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:08,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:08,286 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:08,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-31 22:00:08,344 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-10-31 22:00:08,344 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:08,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:00:08,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:08,433 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:08,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:08,785 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:08,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276326847] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:08,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:08,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-10-31 22:00:08,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464474066] [2024-10-31 22:00:08,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:08,787 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:00:08,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:08,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2024-10-31 22:00:08,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:08,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000858898] [2024-10-31 22:00:08,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:08,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:08,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:08,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:08,821 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:08,821 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:08,821 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:08,821 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:08,821 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:00:08,821 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:08,821 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:08,822 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:08,822 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration5_Loop [2024-10-31 22:00:08,822 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:08,822 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:08,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:08,828 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:08,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:08,877 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:08,879 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:00:08,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:08,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:08,882 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:08,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:00:08,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:08,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:08,910 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:08,911 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:08,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:08,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:08,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:08,934 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:08,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:00:08,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:08,938 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:08,969 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:08,969 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:08,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:08,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:08,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:08,994 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:08,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:00:08,999 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:08,999 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:09,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 22:00:09,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:09,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:09,044 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:09,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:00:09,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:00:09,049 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:09,101 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:00:09,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-31 22:00:09,105 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:09,105 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:09,105 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:09,105 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:09,105 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:00:09,105 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:09,105 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:09,106 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:09,106 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration5_Loop [2024-10-31 22:00:09,106 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:09,106 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:09,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:09,111 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:09,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:09,164 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:09,164 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:00:09,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:09,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:09,167 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:09,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:00:09,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:09,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:09,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:09,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:09,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:09,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:00:09,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:00:09,198 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:09,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:09,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:09,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:09,225 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:09,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:00:09,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:09,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:09,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:09,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:09,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:09,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:00:09,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:00:09,256 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:09,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:09,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:09,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:09,283 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:09,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:00:09,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:09,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:09,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:09,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:09,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:09,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:09,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:09,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:09,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:00:09,317 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:00:09,317 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:00:09,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:09,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:09,320 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:09,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:00:09,323 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:00:09,324 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:00:09,324 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:00:09,324 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 99 Supporting invariants [] [2024-10-31 22:00:09,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:09,349 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:00:09,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:09,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,441 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:09,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:09,467 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:00:09,467 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,483 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2024-10-31 22:00:09,484 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 [2024-10-31 22:00:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-10-31 22:00:09,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 25 letters. Loop has 2 letters. [2024-10-31 22:00:09,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:09,486 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:09,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:09,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,580 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:09,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:09,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:09,608 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:00:09,609 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,641 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 43 transitions. Complement of second has 5 states. [2024-10-31 22:00:09,642 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 [2024-10-31 22:00:09,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-31 22:00:09,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 25 letters. Loop has 2 letters. [2024-10-31 22:00:09,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:09,644 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:09,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:09,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,743 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:09,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:09,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:09,772 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 2 loop predicates [2024-10-31 22:00:09,773 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,794 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 45 transitions. Complement of second has 4 states. [2024-10-31 22:00:09,796 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 [2024-10-31 22:00:09,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-31 22:00:09,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 2 letters. [2024-10-31 22:00:09,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:09,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 27 letters. Loop has 2 letters. [2024-10-31 22:00:09,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:09,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 4 letters. [2024-10-31 22:00:09,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:09,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 45 transitions. [2024-10-31 22:00:09,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:00:09,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 29 states and 32 transitions. [2024-10-31 22:00:09,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:00:09,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:00:09,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 32 transitions. [2024-10-31 22:00:09,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:09,808 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-10-31 22:00:09,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 32 transitions. [2024-10-31 22:00:09,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2024-10-31 22:00:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-10-31 22:00:09,815 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-10-31 22:00:09,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:09,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-31 22:00:09,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:00:09,818 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 24 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:09,936 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2024-10-31 22:00:09,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 65 transitions. [2024-10-31 22:00:09,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:09,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 51 states and 53 transitions. [2024-10-31 22:00:09,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:00:09,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:00:09,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 53 transitions. [2024-10-31 22:00:09,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:09,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 53 transitions. [2024-10-31 22:00:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 53 transitions. [2024-10-31 22:00:09,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2024-10-31 22:00:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.04) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2024-10-31 22:00:09,944 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 52 transitions. [2024-10-31 22:00:09,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-31 22:00:09,945 INFO L425 stractBuchiCegarLoop]: Abstraction has 50 states and 52 transitions. [2024-10-31 22:00:09,945 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:00:09,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 52 transitions. [2024-10-31 22:00:09,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:09,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:09,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:09,959 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [24, 22, 1, 1, 1] [2024-10-31 22:00:09,959 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-10-31 22:00:09,960 INFO L745 eck$LassoCheckResult]: Stem: 1323#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1324#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 1317#L10-2 assume !!(main_~i~0#1 < 100); 1318#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1321#L10-2 assume !!(main_~i~0#1 < 100); 1322#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1319#L10-2 assume !!(main_~i~0#1 < 100); 1320#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1366#L10-2 assume !!(main_~i~0#1 < 100); 1365#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1364#L10-2 assume !!(main_~i~0#1 < 100); 1363#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1362#L10-2 assume !!(main_~i~0#1 < 100); 1361#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1360#L10-2 assume !!(main_~i~0#1 < 100); 1359#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1358#L10-2 assume !!(main_~i~0#1 < 100); 1357#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1356#L10-2 assume !!(main_~i~0#1 < 100); 1355#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1354#L10-2 assume !!(main_~i~0#1 < 100); 1353#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1352#L10-2 assume !!(main_~i~0#1 < 100); 1351#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1350#L10-2 assume !!(main_~i~0#1 < 100); 1349#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1348#L10-2 assume !!(main_~i~0#1 < 100); 1347#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1346#L10-2 assume !!(main_~i~0#1 < 100); 1345#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1344#L10-2 assume !!(main_~i~0#1 < 100); 1343#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1342#L10-2 assume !!(main_~i~0#1 < 100); 1341#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1340#L10-2 assume !!(main_~i~0#1 < 100); 1339#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1338#L10-2 assume !!(main_~i~0#1 < 100); 1337#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1336#L10-2 assume !!(main_~i~0#1 < 100); 1335#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1334#L10-2 assume !!(main_~i~0#1 < 100); 1333#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1332#L10-2 assume !!(main_~i~0#1 < 100); 1331#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1330#L10-2 assume !!(main_~i~0#1 < 100); 1329#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1328#L10-2 assume !!(main_~i~0#1 < 100); 1326#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 1325#L10-2 assume !!(main_~i~0#1 < 100); 1327#L10 [2024-10-31 22:00:09,960 INFO L747 eck$LassoCheckResult]: Loop: 1327#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1328#L10-2 assume !!(main_~i~0#1 < 100); 1326#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 1325#L10-2 assume !!(main_~i~0#1 < 100); 1327#L10 [2024-10-31 22:00:09,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash -694298463, now seen corresponding path program 4 times [2024-10-31 22:00:09,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:09,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108081097] [2024-10-31 22:00:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:09,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:09,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:10,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108081097] [2024-10-31 22:00:10,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108081097] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842940017] [2024-10-31 22:00:10,774 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:00:10,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:10,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:10,777 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:10,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-10-31 22:00:10,850 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:00:10,851 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:10,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-31 22:00:10,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:11,005 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:12,283 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:12,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842940017] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:12,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:12,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2024-10-31 22:00:12,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624708568] [2024-10-31 22:00:12,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:12,289 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:00:12,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2024-10-31 22:00:12,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522725490] [2024-10-31 22:00:12,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:12,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:12,304 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:12,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:12,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-31 22:00:12,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-10-31 22:00:12,362 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. cyclomatic complexity: 3 Second operand has 48 states, 48 states have (on average 2.0) internal successors, (96), 48 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:12,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:12,626 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2024-10-31 22:00:12,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 125 transitions. [2024-10-31 22:00:12,628 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:12,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 99 states and 101 transitions. [2024-10-31 22:00:12,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:00:12,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:00:12,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 101 transitions. [2024-10-31 22:00:12,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:12,633 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 101 transitions. [2024-10-31 22:00:12,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 101 transitions. [2024-10-31 22:00:12,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2024-10-31 22:00:12,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 97 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2024-10-31 22:00:12,643 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 100 transitions. [2024-10-31 22:00:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-31 22:00:12,647 INFO L425 stractBuchiCegarLoop]: Abstraction has 98 states and 100 transitions. [2024-10-31 22:00:12,647 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:00:12,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 100 transitions. [2024-10-31 22:00:12,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:12,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:12,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:12,655 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [48, 46, 1, 1, 1] [2024-10-31 22:00:12,655 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-10-31 22:00:12,655 INFO L745 eck$LassoCheckResult]: Stem: 1835#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1836#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 1829#L10-2 assume !!(main_~i~0#1 < 100); 1830#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1833#L10-2 assume !!(main_~i~0#1 < 100); 1834#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1831#L10-2 assume !!(main_~i~0#1 < 100); 1832#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1926#L10-2 assume !!(main_~i~0#1 < 100); 1925#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1924#L10-2 assume !!(main_~i~0#1 < 100); 1923#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1922#L10-2 assume !!(main_~i~0#1 < 100); 1921#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1920#L10-2 assume !!(main_~i~0#1 < 100); 1919#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1918#L10-2 assume !!(main_~i~0#1 < 100); 1917#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1916#L10-2 assume !!(main_~i~0#1 < 100); 1915#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1914#L10-2 assume !!(main_~i~0#1 < 100); 1913#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1912#L10-2 assume !!(main_~i~0#1 < 100); 1911#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1910#L10-2 assume !!(main_~i~0#1 < 100); 1909#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1908#L10-2 assume !!(main_~i~0#1 < 100); 1907#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1906#L10-2 assume !!(main_~i~0#1 < 100); 1905#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1904#L10-2 assume !!(main_~i~0#1 < 100); 1903#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1902#L10-2 assume !!(main_~i~0#1 < 100); 1901#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1900#L10-2 assume !!(main_~i~0#1 < 100); 1899#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1898#L10-2 assume !!(main_~i~0#1 < 100); 1897#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1896#L10-2 assume !!(main_~i~0#1 < 100); 1895#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1894#L10-2 assume !!(main_~i~0#1 < 100); 1893#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1892#L10-2 assume !!(main_~i~0#1 < 100); 1891#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1890#L10-2 assume !!(main_~i~0#1 < 100); 1889#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1888#L10-2 assume !!(main_~i~0#1 < 100); 1887#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1886#L10-2 assume !!(main_~i~0#1 < 100); 1885#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1884#L10-2 assume !!(main_~i~0#1 < 100); 1883#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1882#L10-2 assume !!(main_~i~0#1 < 100); 1881#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1880#L10-2 assume !!(main_~i~0#1 < 100); 1879#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1878#L10-2 assume !!(main_~i~0#1 < 100); 1877#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1876#L10-2 assume !!(main_~i~0#1 < 100); 1875#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1874#L10-2 assume !!(main_~i~0#1 < 100); 1873#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1872#L10-2 assume !!(main_~i~0#1 < 100); 1871#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1870#L10-2 assume !!(main_~i~0#1 < 100); 1869#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1868#L10-2 assume !!(main_~i~0#1 < 100); 1867#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1866#L10-2 assume !!(main_~i~0#1 < 100); 1865#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1864#L10-2 assume !!(main_~i~0#1 < 100); 1863#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1862#L10-2 assume !!(main_~i~0#1 < 100); 1861#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1860#L10-2 assume !!(main_~i~0#1 < 100); 1859#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1858#L10-2 assume !!(main_~i~0#1 < 100); 1857#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1856#L10-2 assume !!(main_~i~0#1 < 100); 1855#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1854#L10-2 assume !!(main_~i~0#1 < 100); 1853#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1852#L10-2 assume !!(main_~i~0#1 < 100); 1851#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1850#L10-2 assume !!(main_~i~0#1 < 100); 1849#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1848#L10-2 assume !!(main_~i~0#1 < 100); 1847#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1846#L10-2 assume !!(main_~i~0#1 < 100); 1845#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1844#L10-2 assume !!(main_~i~0#1 < 100); 1843#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1842#L10-2 assume !!(main_~i~0#1 < 100); 1841#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1840#L10-2 assume !!(main_~i~0#1 < 100); 1838#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 1837#L10-2 assume !!(main_~i~0#1 < 100); 1839#L10 [2024-10-31 22:00:12,655 INFO L747 eck$LassoCheckResult]: Loop: 1839#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1840#L10-2 assume !!(main_~i~0#1 < 100); 1838#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 1837#L10-2 assume !!(main_~i~0#1 < 100); 1839#L10 [2024-10-31 22:00:12,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,656 INFO L85 PathProgramCache]: Analyzing trace with hash -818401447, now seen corresponding path program 5 times [2024-10-31 22:00:12,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437138294] [2024-10-31 22:00:12,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:14,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:14,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437138294] [2024-10-31 22:00:14,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437138294] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:14,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228860402] [2024-10-31 22:00:14,986 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-31 22:00:14,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:14,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,989 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-10-31 22:00:15,087 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2024-10-31 22:00:15,087 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:15,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-31 22:00:15,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:15,326 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:17,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:17,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228860402] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:17,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:17,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 52 [2024-10-31 22:00:17,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135570273] [2024-10-31 22:00:17,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:17,219 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:00:17,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2024-10-31 22:00:17,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320910951] [2024-10-31 22:00:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:17,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:17,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:17,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:17,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-31 22:00:17,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2024-10-31 22:00:17,271 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 52 states, 52 states have (on average 2.019230769230769) internal successors, (105), 52 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:17,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:17,495 INFO L93 Difference]: Finished difference Result 111 states and 113 transitions. [2024-10-31 22:00:17,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 113 transitions. [2024-10-31 22:00:17,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:17,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 107 states and 109 transitions. [2024-10-31 22:00:17,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:00:17,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:00:17,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 109 transitions. [2024-10-31 22:00:17,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:17,502 INFO L218 hiAutomatonCegarLoop]: Abstraction has 107 states and 109 transitions. [2024-10-31 22:00:17,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 109 transitions. [2024-10-31 22:00:17,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-10-31 22:00:17,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 106 states have (on average 1.0188679245283019) internal successors, (108), 105 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:17,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 108 transitions. [2024-10-31 22:00:17,515 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 108 transitions. [2024-10-31 22:00:17,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-10-31 22:00:17,516 INFO L425 stractBuchiCegarLoop]: Abstraction has 106 states and 108 transitions. [2024-10-31 22:00:17,517 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:00:17,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 108 transitions. [2024-10-31 22:00:17,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:17,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:17,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:17,521 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [52, 50, 1, 1, 1] [2024-10-31 22:00:17,522 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-10-31 22:00:17,522 INFO L745 eck$LassoCheckResult]: Stem: 2675#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2676#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 2669#L10-2 assume !!(main_~i~0#1 < 100); 2670#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2673#L10-2 assume !!(main_~i~0#1 < 100); 2674#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2671#L10-2 assume !!(main_~i~0#1 < 100); 2672#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2774#L10-2 assume !!(main_~i~0#1 < 100); 2773#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2772#L10-2 assume !!(main_~i~0#1 < 100); 2771#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2770#L10-2 assume !!(main_~i~0#1 < 100); 2769#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2768#L10-2 assume !!(main_~i~0#1 < 100); 2767#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2766#L10-2 assume !!(main_~i~0#1 < 100); 2765#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2764#L10-2 assume !!(main_~i~0#1 < 100); 2763#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2762#L10-2 assume !!(main_~i~0#1 < 100); 2761#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2760#L10-2 assume !!(main_~i~0#1 < 100); 2759#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2758#L10-2 assume !!(main_~i~0#1 < 100); 2757#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2756#L10-2 assume !!(main_~i~0#1 < 100); 2755#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2754#L10-2 assume !!(main_~i~0#1 < 100); 2753#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2752#L10-2 assume !!(main_~i~0#1 < 100); 2751#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2750#L10-2 assume !!(main_~i~0#1 < 100); 2749#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2748#L10-2 assume !!(main_~i~0#1 < 100); 2747#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2746#L10-2 assume !!(main_~i~0#1 < 100); 2745#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2744#L10-2 assume !!(main_~i~0#1 < 100); 2743#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2742#L10-2 assume !!(main_~i~0#1 < 100); 2741#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2740#L10-2 assume !!(main_~i~0#1 < 100); 2739#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2738#L10-2 assume !!(main_~i~0#1 < 100); 2737#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2736#L10-2 assume !!(main_~i~0#1 < 100); 2735#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2734#L10-2 assume !!(main_~i~0#1 < 100); 2733#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2732#L10-2 assume !!(main_~i~0#1 < 100); 2731#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2730#L10-2 assume !!(main_~i~0#1 < 100); 2729#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2728#L10-2 assume !!(main_~i~0#1 < 100); 2727#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2726#L10-2 assume !!(main_~i~0#1 < 100); 2725#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2724#L10-2 assume !!(main_~i~0#1 < 100); 2723#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2722#L10-2 assume !!(main_~i~0#1 < 100); 2721#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2720#L10-2 assume !!(main_~i~0#1 < 100); 2719#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2718#L10-2 assume !!(main_~i~0#1 < 100); 2717#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2716#L10-2 assume !!(main_~i~0#1 < 100); 2715#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2714#L10-2 assume !!(main_~i~0#1 < 100); 2713#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2712#L10-2 assume !!(main_~i~0#1 < 100); 2711#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2710#L10-2 assume !!(main_~i~0#1 < 100); 2709#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2708#L10-2 assume !!(main_~i~0#1 < 100); 2707#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2706#L10-2 assume !!(main_~i~0#1 < 100); 2705#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2704#L10-2 assume !!(main_~i~0#1 < 100); 2703#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2702#L10-2 assume !!(main_~i~0#1 < 100); 2701#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2700#L10-2 assume !!(main_~i~0#1 < 100); 2699#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2698#L10-2 assume !!(main_~i~0#1 < 100); 2697#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2696#L10-2 assume !!(main_~i~0#1 < 100); 2695#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2694#L10-2 assume !!(main_~i~0#1 < 100); 2693#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2692#L10-2 assume !!(main_~i~0#1 < 100); 2691#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2690#L10-2 assume !!(main_~i~0#1 < 100); 2689#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2688#L10-2 assume !!(main_~i~0#1 < 100); 2687#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2686#L10-2 assume !!(main_~i~0#1 < 100); 2685#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2684#L10-2 assume !!(main_~i~0#1 < 100); 2683#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2682#L10-2 assume !!(main_~i~0#1 < 100); 2681#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2680#L10-2 assume !!(main_~i~0#1 < 100); 2678#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 2677#L10-2 assume !!(main_~i~0#1 < 100); 2679#L10 [2024-10-31 22:00:17,522 INFO L747 eck$LassoCheckResult]: Loop: 2679#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2680#L10-2 assume !!(main_~i~0#1 < 100); 2678#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 2677#L10-2 assume !!(main_~i~0#1 < 100); 2679#L10 [2024-10-31 22:00:17,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1468745677, now seen corresponding path program 6 times [2024-10-31 22:00:17,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133975293] [2024-10-31 22:00:17,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:17,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:17,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:17,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 3 times [2024-10-31 22:00:17,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351610470] [2024-10-31 22:00:17,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:17,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:17,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:17,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1914756667, now seen corresponding path program 7 times [2024-10-31 22:00:17,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894188885] [2024-10-31 22:00:17,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:17,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:17,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:19,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:19,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:00:19 BoogieIcfgContainer [2024-10-31 22:00:19,741 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:00:19,741 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:00:19,741 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:00:19,742 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:00:19,742 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:03" (3/4) ... [2024-10-31 22:00:19,745 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:00:19,825 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:00:19,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:00:19,826 INFO L158 Benchmark]: Toolchain (without parser) took 17413.68ms. Allocated memory was 146.8MB in the beginning and 222.3MB in the end (delta: 75.5MB). Free memory was 109.6MB in the beginning and 177.2MB in the end (delta: -67.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-10-31 22:00:19,827 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 146.8MB. Free memory was 116.5MB in the beginning and 116.5MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:00:19,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.27ms. Allocated memory is still 146.8MB. Free memory was 109.6MB in the beginning and 98.3MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:00:19,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.52ms. Allocated memory is still 146.8MB. Free memory was 98.3MB in the beginning and 97.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:00:19,828 INFO L158 Benchmark]: Boogie Preprocessor took 34.22ms. Allocated memory is still 146.8MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:00:19,829 INFO L158 Benchmark]: RCFGBuilder took 270.46ms. Allocated memory is still 146.8MB. Free memory was 95.7MB in the beginning and 87.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:00:19,829 INFO L158 Benchmark]: BuchiAutomizer took 16664.26ms. Allocated memory was 146.8MB in the beginning and 222.3MB in the end (delta: 75.5MB). Free memory was 87.4MB in the beginning and 181.4MB in the end (delta: -94.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:00:19,830 INFO L158 Benchmark]: Witness Printer took 84.50ms. Allocated memory is still 222.3MB. Free memory was 181.4MB in the beginning and 177.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:00:19,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 146.8MB. Free memory was 116.5MB in the beginning and 116.5MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.27ms. Allocated memory is still 146.8MB. Free memory was 109.6MB in the beginning and 98.3MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.52ms. Allocated memory is still 146.8MB. Free memory was 98.3MB in the beginning and 97.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.22ms. Allocated memory is still 146.8MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.46ms. Allocated memory is still 146.8MB. Free memory was 95.7MB in the beginning and 87.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 16664.26ms. Allocated memory was 146.8MB in the beginning and 222.3MB in the end (delta: 75.5MB). Free memory was 87.4MB in the beginning and 181.4MB in the end (delta: -94.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 84.50ms. Allocated memory is still 222.3MB. Free memory was 181.4MB in the beginning and 177.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 11 terminating modules (6 trivial, 3 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 3 locations. One deterministic module has affine ranking function (((long) -2 * i) + 99) and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 99) and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 52 locations. The remainder module has 106 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 16.5s and 8 iterations. TraceHistogramMax:52. Analysis of lassos took 14.1s. Construction of modules took 0.5s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 9 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, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 352 IncrementalHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 51 mSDtfsCounter, 352 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN2 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax203 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 70ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = 0 VAL [i=0] [L9] COND TRUE i < 100 VAL [i=0] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=1] [L9] COND TRUE i < 100 VAL [i=1] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=2] [L9] COND TRUE i < 100 VAL [i=2] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=3] [L9] COND TRUE i < 100 VAL [i=3] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=4] [L9] COND TRUE i < 100 VAL [i=4] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=5] [L9] COND TRUE i < 100 VAL [i=5] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=6] [L9] COND TRUE i < 100 VAL [i=6] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=7] [L9] COND TRUE i < 100 VAL [i=7] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=8] [L9] COND TRUE i < 100 VAL [i=8] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=9] [L9] COND TRUE i < 100 VAL [i=9] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=10] [L9] COND TRUE i < 100 VAL [i=10] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=11] [L9] COND TRUE i < 100 VAL [i=11] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=12] [L9] COND TRUE i < 100 VAL [i=12] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=13] [L9] COND TRUE i < 100 VAL [i=13] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=14] [L9] COND TRUE i < 100 VAL [i=14] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=15] [L9] COND TRUE i < 100 VAL [i=15] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=16] [L9] COND TRUE i < 100 VAL [i=16] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=17] [L9] COND TRUE i < 100 VAL [i=17] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=18] [L9] COND TRUE i < 100 VAL [i=18] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=19] [L9] COND TRUE i < 100 VAL [i=19] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=20] [L9] COND TRUE i < 100 VAL [i=20] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=21] [L9] COND TRUE i < 100 VAL [i=21] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=22] [L9] COND TRUE i < 100 VAL [i=22] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=23] [L9] COND TRUE i < 100 VAL [i=23] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=24] [L9] COND TRUE i < 100 VAL [i=24] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=25] [L9] COND TRUE i < 100 VAL [i=25] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=26] [L9] COND TRUE i < 100 VAL [i=26] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=27] [L9] COND TRUE i < 100 VAL [i=27] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=28] [L9] COND TRUE i < 100 VAL [i=28] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=29] [L9] COND TRUE i < 100 VAL [i=29] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=30] [L9] COND TRUE i < 100 VAL [i=30] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=31] [L9] COND TRUE i < 100 VAL [i=31] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=32] [L9] COND TRUE i < 100 VAL [i=32] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=33] [L9] COND TRUE i < 100 VAL [i=33] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=34] [L9] COND TRUE i < 100 VAL [i=34] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=35] [L9] COND TRUE i < 100 VAL [i=35] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=36] [L9] COND TRUE i < 100 VAL [i=36] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=37] [L9] COND TRUE i < 100 VAL [i=37] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=38] [L9] COND TRUE i < 100 VAL [i=38] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=39] [L9] COND TRUE i < 100 VAL [i=39] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=40] [L9] COND TRUE i < 100 VAL [i=40] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=41] [L9] COND TRUE i < 100 VAL [i=41] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=42] [L9] COND TRUE i < 100 VAL [i=42] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=43] [L9] COND TRUE i < 100 VAL [i=43] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=44] [L9] COND TRUE i < 100 VAL [i=44] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=45] [L9] COND TRUE i < 100 VAL [i=45] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=46] [L9] COND TRUE i < 100 VAL [i=46] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=47] [L9] COND TRUE i < 100 VAL [i=47] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=48] [L9] COND TRUE i < 100 VAL [i=48] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=50] [L9] COND TRUE i < 100 VAL [i=50] [L10] COND FALSE !(i < 50) [L11] i = i-1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] Loop: [L10] COND TRUE i < 50 [L10] i = i+1 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = i-1 [L9] COND TRUE i < 100 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 VAL [i=0] [L9] COND TRUE i < 100 VAL [i=0] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=1] [L9] COND TRUE i < 100 VAL [i=1] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=2] [L9] COND TRUE i < 100 VAL [i=2] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=3] [L9] COND TRUE i < 100 VAL [i=3] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=4] [L9] COND TRUE i < 100 VAL [i=4] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=5] [L9] COND TRUE i < 100 VAL [i=5] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=6] [L9] COND TRUE i < 100 VAL [i=6] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=7] [L9] COND TRUE i < 100 VAL [i=7] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=8] [L9] COND TRUE i < 100 VAL [i=8] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=9] [L9] COND TRUE i < 100 VAL [i=9] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=10] [L9] COND TRUE i < 100 VAL [i=10] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=11] [L9] COND TRUE i < 100 VAL [i=11] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=12] [L9] COND TRUE i < 100 VAL [i=12] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=13] [L9] COND TRUE i < 100 VAL [i=13] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=14] [L9] COND TRUE i < 100 VAL [i=14] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=15] [L9] COND TRUE i < 100 VAL [i=15] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=16] [L9] COND TRUE i < 100 VAL [i=16] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=17] [L9] COND TRUE i < 100 VAL [i=17] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=18] [L9] COND TRUE i < 100 VAL [i=18] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=19] [L9] COND TRUE i < 100 VAL [i=19] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=20] [L9] COND TRUE i < 100 VAL [i=20] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=21] [L9] COND TRUE i < 100 VAL [i=21] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=22] [L9] COND TRUE i < 100 VAL [i=22] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=23] [L9] COND TRUE i < 100 VAL [i=23] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=24] [L9] COND TRUE i < 100 VAL [i=24] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=25] [L9] COND TRUE i < 100 VAL [i=25] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=26] [L9] COND TRUE i < 100 VAL [i=26] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=27] [L9] COND TRUE i < 100 VAL [i=27] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=28] [L9] COND TRUE i < 100 VAL [i=28] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=29] [L9] COND TRUE i < 100 VAL [i=29] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=30] [L9] COND TRUE i < 100 VAL [i=30] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=31] [L9] COND TRUE i < 100 VAL [i=31] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=32] [L9] COND TRUE i < 100 VAL [i=32] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=33] [L9] COND TRUE i < 100 VAL [i=33] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=34] [L9] COND TRUE i < 100 VAL [i=34] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=35] [L9] COND TRUE i < 100 VAL [i=35] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=36] [L9] COND TRUE i < 100 VAL [i=36] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=37] [L9] COND TRUE i < 100 VAL [i=37] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=38] [L9] COND TRUE i < 100 VAL [i=38] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=39] [L9] COND TRUE i < 100 VAL [i=39] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=40] [L9] COND TRUE i < 100 VAL [i=40] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=41] [L9] COND TRUE i < 100 VAL [i=41] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=42] [L9] COND TRUE i < 100 VAL [i=42] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=43] [L9] COND TRUE i < 100 VAL [i=43] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=44] [L9] COND TRUE i < 100 VAL [i=44] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=45] [L9] COND TRUE i < 100 VAL [i=45] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=46] [L9] COND TRUE i < 100 VAL [i=46] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=47] [L9] COND TRUE i < 100 VAL [i=47] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=48] [L9] COND TRUE i < 100 VAL [i=48] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=50] [L9] COND TRUE i < 100 VAL [i=50] [L10] COND FALSE !(i < 50) [L11] i = i-1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] Loop: [L10] COND TRUE i < 50 [L10] i = i+1 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = i-1 [L9] COND TRUE i < 100 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:00:19,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:20,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-10-31 22:00:20,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:20,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:20,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:20,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec18777-937c-4864-9f74-9ccfc9363acb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)