./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB --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 7c4ca36c34c25cccb97ec2e65527d2a743b4e62b95f1f396c9f281ef44a01670 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:11:31,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:11:31,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 02:11:31,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:11:31,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:11:32,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:11:32,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:11:32,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:11:32,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:11:32,007 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:11:32,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:11:32,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:11:32,008 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:11:32,009 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 02:11:32,010 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 02:11:32,010 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 02:11:32,010 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 02:11:32,010 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 02:11:32,010 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 02:11:32,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:11:32,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 02:11:32,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:11:32,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:11:32,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 02:11:32,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 02:11:32,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 02:11:32,011 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:11:32,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:11:32,012 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 02:11:32,012 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:11:32,012 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:11:32,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:11:32,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:11:32,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:11:32,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 02:11:32,013 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 02:11:32,013 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 7c4ca36c34c25cccb97ec2e65527d2a743b4e62b95f1f396c9f281ef44a01670 [2024-11-28 02:11:32,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:11:32,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:11:32,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:11:32,409 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:11:32,409 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:11:32,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2024-11-28 02:11:35,996 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/data/be037a3d3/1371ab4d39974cbb861cf48e48d2fea4/FLAGf3f7f37b5 [2024-11-28 02:11:36,375 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:11:36,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2024-11-28 02:11:36,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/data/be037a3d3/1371ab4d39974cbb861cf48e48d2fea4/FLAGf3f7f37b5 [2024-11-28 02:11:36,422 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/data/be037a3d3/1371ab4d39974cbb861cf48e48d2fea4 [2024-11-28 02:11:36,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:11:36,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:11:36,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:11:36,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:11:36,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:11:36,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d99dad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36, skipping insertion in model container [2024-11-28 02:11:36,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:11:36,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:11:36,625 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:11:36,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:11:36,647 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:11:36,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36 WrapperNode [2024-11-28 02:11:36,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:11:36,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:11:36,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:11:36,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:11:36,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,673 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-11-28 02:11:36,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:11:36,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:11:36,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:11:36,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:11:36,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,684 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,689 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 02:11:36,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,691 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,701 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:11:36,702 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:11:36,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:11:36,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:11:36,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (1/1) ... [2024-11-28 02:11:36,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:36,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:36,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:36,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 02:11:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:11:36,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:11:36,867 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:11:36,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:11:36,954 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-28 02:11:36,954 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:11:36,966 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:11:36,967 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:11:36,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:11:36 BoogieIcfgContainer [2024-11-28 02:11:36,968 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:11:36,969 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 02:11:36,969 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 02:11:36,976 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 02:11:36,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:11:36,978 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:11:36" (1/3) ... [2024-11-28 02:11:36,980 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70c1fc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:11:36, skipping insertion in model container [2024-11-28 02:11:36,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:11:36,981 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:36" (2/3) ... [2024-11-28 02:11:36,982 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70c1fc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:11:36, skipping insertion in model container [2024-11-28 02:11:36,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:11:36,982 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:11:36" (3/3) ... [2024-11-28 02:11:36,984 INFO L363 chiAutomizerObserver]: Analyzing ICFG UpAndDownIneq.c [2024-11-28 02:11:37,051 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 02:11:37,051 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 02:11:37,052 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 02:11:37,052 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 02:11:37,052 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 02:11:37,053 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 02:11:37,053 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 02:11:37,053 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 02:11:37,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:37,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 02:11:37,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:37,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:37,082 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:11:37,083 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:37,083 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 02:11:37,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:37,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 02:11:37,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:37,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:37,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:11:37,085 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:37,095 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" [2024-11-28 02:11:37,095 INFO L749 eck$LassoCheckResult]: Loop: "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-28 02:11:37,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 02:11:37,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:37,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685307957] [2024-11-28 02:11:37,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:37,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:37,217 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:37,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:37,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:37,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1177871, now seen corresponding path program 1 times [2024-11-28 02:11:37,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:37,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424349201] [2024-11-28 02:11:37,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:37,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:37,275 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:37,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:37,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:37,294 INFO L85 PathProgramCache]: Analyzing trace with hash 889605073, now seen corresponding path program 1 times [2024-11-28 02:11:37,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:37,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250853138] [2024-11-28 02:11:37,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:37,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:37,310 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:37,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:37,462 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:37,463 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:37,463 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:37,464 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:37,464 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:11:37,464 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:37,464 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:37,464 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:37,465 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2024-11-28 02:11:37,465 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:37,465 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:37,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:37,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:37,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:37,516 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:37,621 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:37,622 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:11:37,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:37,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:37,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:37,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 02:11:37,630 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:37,630 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:37,651 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:37,652 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:37,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 02:11:37,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:37,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:37,667 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:37,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 02:11:37,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:37,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:37,705 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:37,705 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:37,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 02:11:37,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:37,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:37,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:37,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 02:11:37,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:37,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:37,749 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:37,749 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:37,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 02:11:37,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:37,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:37,762 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:37,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 02:11:37,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:37,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:37,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-28 02:11:37,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:37,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:37,792 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:37,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 02:11:37,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:11:37,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:37,816 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:11:37,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:37,825 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:37,826 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:37,826 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:37,826 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:37,826 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:11:37,826 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:37,826 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:37,826 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:37,826 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2024-11-28 02:11:37,826 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:37,826 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:37,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:37,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:37,845 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:37,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:37,945 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:37,950 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:11:37,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:37,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:37,955 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:37,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 02:11:37,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:37,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:37,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:37,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:37,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:37,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:37,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:38,013 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:38,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 02:11:38,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:38,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:38,033 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:38,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:38,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 02:11:38,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:38,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:38,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:38,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:38,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:38,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:38,073 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:38,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:38,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:38,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:38,087 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:38,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 02:11:38,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:38,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:38,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:38,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:38,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:38,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:38,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:38,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:38,116 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:11:38,121 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:11:38,124 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 02:11:38,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:38,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:38,129 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:38,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 02:11:38,134 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:11:38,134 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:11:38,134 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:11:38,135 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-11-28 02:11:38,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:38,150 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:11:38,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:38,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:38,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:38,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:38,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:38,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:38,302 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 02:11:38,304 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:38,419 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 45 transitions. Complement of second has 8 states. [2024-11-28 02:11:38,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:38,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:38,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-11-28 02:11:38,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-28 02:11:38,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:38,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-28 02:11:38,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:38,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 8 letters. [2024-11-28 02:11:38,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:38,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 45 transitions. [2024-11-28 02:11:38,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-28 02:11:38,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 30 transitions. [2024-11-28 02:11:38,459 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-28 02:11:38,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-28 02:11:38,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2024-11-28 02:11:38,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:38,462 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2024-11-28 02:11:38,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2024-11-28 02:11:38,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-11-28 02:11:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 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) [2024-11-28 02:11:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2024-11-28 02:11:38,496 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2024-11-28 02:11:38,496 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2024-11-28 02:11:38,496 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 02:11:38,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2024-11-28 02:11:38,498 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-28 02:11:38,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:38,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:38,499 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 02:11:38,499 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:38,499 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" [2024-11-28 02:11:38,499 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" [2024-11-28 02:11:38,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash 29861, now seen corresponding path program 1 times [2024-11-28 02:11:38,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:38,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415798888] [2024-11-28 02:11:38,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:38,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:38,511 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:38,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:38,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:38,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1422133, now seen corresponding path program 1 times [2024-11-28 02:11:38,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:38,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952054707] [2024-11-28 02:11:38,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:38,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:38,522 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:38,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:38,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:38,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1807955417, now seen corresponding path program 1 times [2024-11-28 02:11:38,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:38,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927701268] [2024-11-28 02:11:38,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:38,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:38,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:38,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927701268] [2024-11-28 02:11:38,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927701268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:38,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156690021] [2024-11-28 02:11:38,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:38,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:38,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:38,630 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:38,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:11:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:38,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:38,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:38,681 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:38,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156690021] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:38,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:38,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 02:11:38,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080334914] [2024-11-28 02:11:38,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:38,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:38,805 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:38,805 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:38,805 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:38,805 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:38,806 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:11:38,806 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:38,806 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:38,806 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:38,806 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2024-11-28 02:11:38,806 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:38,806 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:38,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:38,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:38,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:38,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:38,916 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:38,916 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:11:38,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:38,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:38,921 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:38,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 02:11:38,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:38,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:38,955 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:38,955 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:38,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:38,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:38,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:38,964 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:38,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 02:11:38,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:38,968 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:38,991 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:38,992 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:39,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-28 02:11:39,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,003 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 02:11:39,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:39,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:39,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:39,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,030 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 02:11:39,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:11:39,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:39,077 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:11:39,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-28 02:11:39,081 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:39,081 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:39,081 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:39,081 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:39,081 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:11:39,081 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,081 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:39,081 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:39,082 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2024-11-28 02:11:39,082 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:39,082 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:39,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:39,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:39,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:39,109 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:39,174 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:39,174 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:11:39,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,176 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 02:11:39,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:39,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:39,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:39,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:39,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:39,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:39,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:39,216 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:39,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:39,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,231 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 02:11:39,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:39,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:39,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:39,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:39,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:39,264 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:39,264 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:39,272 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:39,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:39,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,288 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 02:11:39,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:39,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:39,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:39,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:39,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:39,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:39,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:39,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:39,319 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:11:39,324 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:11:39,324 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 02:11:39,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,331 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 02:11:39,335 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:11:39,335 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:11:39,335 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:11:39,335 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2024-11-28 02:11:39,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:39,347 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:11:39,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:39,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:39,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:39,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:39,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:39,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:39,494 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-28 02:11:39,494 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:39,551 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 44 states and 73 transitions. Complement of second has 7 states. [2024-11-28 02:11:39,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-11-28 02:11:39,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-28 02:11:39,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:39,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-28 02:11:39,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:39,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-28 02:11:39,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:39,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 73 transitions. [2024-11-28 02:11:39,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-28 02:11:39,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 36 states and 59 transitions. [2024-11-28 02:11:39,566 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-28 02:11:39,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-28 02:11:39,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 59 transitions. [2024-11-28 02:11:39,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:39,567 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 59 transitions. [2024-11-28 02:11:39,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 59 transitions. [2024-11-28 02:11:39,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2024-11-28 02:11:39,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 27 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:39,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 46 transitions. [2024-11-28 02:11:39,573 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 46 transitions. [2024-11-28 02:11:39,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:11:39,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:11:39,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:11:39,578 INFO L87 Difference]: Start difference. First operand 28 states and 46 transitions. 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) [2024-11-28 02:11:39,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:39,600 INFO L93 Difference]: Finished difference Result 37 states and 56 transitions. [2024-11-28 02:11:39,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 56 transitions. [2024-11-28 02:11:39,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 02:11:39,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 49 transitions. [2024-11-28 02:11:39,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-11-28 02:11:39,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-11-28 02:11:39,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 49 transitions. [2024-11-28 02:11:39,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:39,604 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2024-11-28 02:11:39,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 49 transitions. [2024-11-28 02:11:39,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2024-11-28 02:11:39,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 25 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:39,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 40 transitions. [2024-11-28 02:11:39,607 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 40 transitions. [2024-11-28 02:11:39,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:11:39,608 INFO L425 stractBuchiCegarLoop]: Abstraction has 26 states and 40 transitions. [2024-11-28 02:11:39,609 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 02:11:39,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 40 transitions. [2024-11-28 02:11:39,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 02:11:39,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:39,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:39,610 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-28 02:11:39,610 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:39,610 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" "assume !(main_~i~0#1 <= 0);" [2024-11-28 02:11:39,611 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" [2024-11-28 02:11:39,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:39,611 INFO L85 PathProgramCache]: Analyzing trace with hash 28696877, now seen corresponding path program 1 times [2024-11-28 02:11:39,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:39,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204446316] [2024-11-28 02:11:39,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:39,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:39,617 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:39,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:39,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:39,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1765875, now seen corresponding path program 1 times [2024-11-28 02:11:39,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:39,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031587512] [2024-11-28 02:11:39,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:39,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:39,636 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:39,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:39,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:39,645 INFO L85 PathProgramCache]: Analyzing trace with hash -2073797345, now seen corresponding path program 1 times [2024-11-28 02:11:39,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:39,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257136411] [2024-11-28 02:11:39,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:39,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:39,661 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:39,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:39,723 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:39,723 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:39,723 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:39,724 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:39,724 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:11:39,724 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,724 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:39,724 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:39,724 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2024-11-28 02:11:39,724 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:39,724 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:39,725 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:39,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:39,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:39,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:39,805 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:39,805 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:11:39,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,810 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:39,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:39,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 02:11:39,842 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:39,843 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:39,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-28 02:11:39,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,857 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 02:11:39,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:39,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:39,890 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:39,890 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:39,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-28 02:11:39,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,900 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 02:11:39,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:39,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:39,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:39,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:39,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:39,943 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:39,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 02:11:39,951 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:11:39,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:40,046 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:11:40,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-28 02:11:40,050 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:40,050 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:40,050 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:40,050 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:40,050 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:11:40,050 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:40,050 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:40,050 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:40,050 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2024-11-28 02:11:40,050 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:40,050 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:40,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:40,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:40,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:40,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:40,133 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:40,133 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:11:40,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:40,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:40,136 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:40,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 02:11:40,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:40,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:40,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:40,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:40,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:40,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:40,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:40,169 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:40,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-28 02:11:40,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:40,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:40,184 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:40,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 02:11:40,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:40,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:40,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:40,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:40,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:40,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:40,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:40,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:40,211 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:40,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-28 02:11:40,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:40,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:40,225 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:40,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 02:11:40,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:40,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:40,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:40,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:40,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:40,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:40,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:40,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:40,249 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:11:40,254 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:11:40,255 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 02:11:40,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:40,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:40,258 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:40,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 02:11:40,263 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:11:40,263 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:11:40,263 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:11:40,263 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 [] [2024-11-28 02:11:40,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-28 02:11:40,276 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:11:40,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:40,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:40,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:40,351 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 02:11:40,351 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 40 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:40,404 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 40 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 90 transitions. Complement of second has 7 states. [2024-11-28 02:11:40,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:40,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-28 02:11:40,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-28 02:11:40,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:40,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-28 02:11:40,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:40,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2024-11-28 02:11:40,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:40,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 90 transitions. [2024-11-28 02:11:40,411 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-11-28 02:11:40,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 55 states and 85 transitions. [2024-11-28 02:11:40,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2024-11-28 02:11:40,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2024-11-28 02:11:40,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 85 transitions. [2024-11-28 02:11:40,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:40,416 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 85 transitions. [2024-11-28 02:11:40,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 85 transitions. [2024-11-28 02:11:40,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2024-11-28 02:11:40,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.6122448979591837) internal successors, (79), 48 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:40,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 79 transitions. [2024-11-28 02:11:40,425 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 79 transitions. [2024-11-28 02:11:40,425 INFO L425 stractBuchiCegarLoop]: Abstraction has 49 states and 79 transitions. [2024-11-28 02:11:40,425 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 02:11:40,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 79 transitions. [2024-11-28 02:11:40,429 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-11-28 02:11:40,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:40,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:40,431 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-28 02:11:40,431 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:40,431 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" [2024-11-28 02:11:40,431 INFO L749 eck$LassoCheckResult]: Loop: "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" [2024-11-28 02:11:40,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:40,432 INFO L85 PathProgramCache]: Analyzing trace with hash 889603153, now seen corresponding path program 1 times [2024-11-28 02:11:40,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:40,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400758041] [2024-11-28 02:11:40,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:40,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400758041] [2024-11-28 02:11:40,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400758041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:40,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445988448] [2024-11-28 02:11:40,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:40,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:40,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:40,497 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:40,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 02:11:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:40,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:40,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:40,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445988448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:40,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:40,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 4 [2024-11-28 02:11:40,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416400560] [2024-11-28 02:11:40,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:40,551 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 02:11:40,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:40,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1177873, now seen corresponding path program 1 times [2024-11-28 02:11:40,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:40,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149451744] [2024-11-28 02:11:40,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:40,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:40,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149451744] [2024-11-28 02:11:40,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149451744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:40,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096618874] [2024-11-28 02:11:40,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:40,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:40,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:40,582 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:40,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 02:11:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:40,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:40,614 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:40,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096618874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:40,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:40,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-28 02:11:40,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064990637] [2024-11-28 02:11:40,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:40,619 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 02:11:40,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:11:40,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:11:40,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:11:40,620 INFO L87 Difference]: Start difference. First operand 49 states and 79 transitions. cyclomatic complexity: 36 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) [2024-11-28 02:11:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:40,633 INFO L93 Difference]: Finished difference Result 47 states and 69 transitions. [2024-11-28 02:11:40,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. [2024-11-28 02:11:40,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 02:11:40,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 60 transitions. [2024-11-28 02:11:40,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-11-28 02:11:40,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-11-28 02:11:40,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 60 transitions. [2024-11-28 02:11:40,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:40,636 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 60 transitions. [2024-11-28 02:11:40,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 60 transitions. [2024-11-28 02:11:40,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2024-11-28 02:11:40,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.475) internal successors, (59), 39 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:40,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2024-11-28 02:11:40,646 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 59 transitions. [2024-11-28 02:11:40,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:11:40,648 INFO L425 stractBuchiCegarLoop]: Abstraction has 40 states and 59 transitions. [2024-11-28 02:11:40,648 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 02:11:40,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 59 transitions. [2024-11-28 02:11:40,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 02:11:40,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:40,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:40,650 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-28 02:11:40,650 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:40,650 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" [2024-11-28 02:11:40,650 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" [2024-11-28 02:11:40,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:40,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2073797409, now seen corresponding path program 1 times [2024-11-28 02:11:40,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:40,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683658756] [2024-11-28 02:11:40,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:40,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:40,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683658756] [2024-11-28 02:11:40,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683658756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:40,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473379242] [2024-11-28 02:11:40,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:40,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:40,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:40,729 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:40,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 02:11:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:40,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:40,777 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:40,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473379242] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:40,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:40,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2, 2] total 6 [2024-11-28 02:11:40,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949940694] [2024-11-28 02:11:40,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:40,793 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 02:11:40,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:40,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1706229, now seen corresponding path program 1 times [2024-11-28 02:11:40,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:40,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486620430] [2024-11-28 02:11:40,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:40,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:40,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486620430] [2024-11-28 02:11:40,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486620430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:40,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287982137] [2024-11-28 02:11:40,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:40,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:40,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:40,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:40,869 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:40,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 02:11:40,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-28 02:11:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:40,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:40,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:40,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:40,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287982137] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:40,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:40,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2024-11-28 02:11:40,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873144621] [2024-11-28 02:11:40,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:40,918 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 02:11:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:11:40,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:11:40,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:11:40,919 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. cyclomatic complexity: 24 Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:40,952 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2024-11-28 02:11:40,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 75 transitions. [2024-11-28 02:11:40,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-11-28 02:11:40,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 50 states and 64 transitions. [2024-11-28 02:11:40,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2024-11-28 02:11:40,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2024-11-28 02:11:40,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 64 transitions. [2024-11-28 02:11:40,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:40,960 INFO L218 hiAutomatonCegarLoop]: Abstraction has 50 states and 64 transitions. [2024-11-28 02:11:40,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 64 transitions. [2024-11-28 02:11:40,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2024-11-28 02:11:40,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 44 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2024-11-28 02:11:40,966 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 59 transitions. [2024-11-28 02:11:40,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:11:40,970 INFO L425 stractBuchiCegarLoop]: Abstraction has 45 states and 59 transitions. [2024-11-28 02:11:40,973 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 02:11:40,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 59 transitions. [2024-11-28 02:11:40,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-11-28 02:11:40,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:40,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:40,975 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-28 02:11:40,975 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:40,975 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" [2024-11-28 02:11:40,975 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" [2024-11-28 02:11:40,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:40,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2016539045, now seen corresponding path program 1 times [2024-11-28 02:11:40,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:40,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191206948] [2024-11-28 02:11:40,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:40,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:40,989 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:40,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:40,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:41,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1706291, now seen corresponding path program 2 times [2024-11-28 02:11:41,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:41,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856667942] [2024-11-28 02:11:41,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:41,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:41,011 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:41,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:41,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:41,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1155179891, now seen corresponding path program 1 times [2024-11-28 02:11:41,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:41,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413526045] [2024-11-28 02:11:41,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:41,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:41,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:41,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413526045] [2024-11-28 02:11:41,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413526045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:41,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60575088] [2024-11-28 02:11:41,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:41,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:41,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:41,068 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:41,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 02:11:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:41,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:11:41,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:41,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:41,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60575088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:41,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:41,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 02:11:41,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425916917] [2024-11-28 02:11:41,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:41,212 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:41,213 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:41,213 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:41,213 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:41,213 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:11:41,213 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,213 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:41,213 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:41,213 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2024-11-28 02:11:41,214 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:41,214 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:41,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,222 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,311 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:41,311 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:11:41,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:41,316 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:41,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-28 02:11:41,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:41,319 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:41,339 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:41,339 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:41,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:41,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:41,351 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:41,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-28 02:11:41,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:41,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:41,377 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:41,377 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: [] [2024-11-28 02:11:41,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-28 02:11:41,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:41,390 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:41,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-28 02:11:41,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:41,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:41,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:41,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:41,418 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:41,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-28 02:11:41,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:11:41,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:41,449 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:11:41,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:41,453 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:41,453 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:41,453 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:41,453 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:41,453 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:11:41,453 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,453 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:41,453 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:41,453 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2024-11-28 02:11:41,453 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:41,453 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:41,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,543 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:41,543 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:11:41,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:41,546 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:41,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-28 02:11:41,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:41,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:41,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:41,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:41,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:41,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:41,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:41,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:41,573 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:41,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:41,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:41,588 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:41,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-28 02:11:41,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:41,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:41,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:41,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:41,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:41,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:41,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:41,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:41,618 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:11:41,622 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:11:41,622 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 02:11:41,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:41,626 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:41,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-28 02:11:41,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:11:41,630 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:11:41,630 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:11:41,630 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 [] [2024-11-28 02:11:41,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-28 02:11:41,641 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:11:41,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:41,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:41,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:41,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:41,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:41,724 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 02:11:41,725 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 59 transitions. cyclomatic complexity: 18 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:41,776 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 59 transitions. cyclomatic complexity: 18. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 114 states and 141 transitions. Complement of second has 7 states. [2024-11-28 02:11:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:41,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:41,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-11-28 02:11:41,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-28 02:11:41,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:41,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-28 02:11:41,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:41,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 8 letters. [2024-11-28 02:11:41,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:41,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 141 transitions. [2024-11-28 02:11:41,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-28 02:11:41,782 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 85 states and 108 transitions. [2024-11-28 02:11:41,782 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2024-11-28 02:11:41,782 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-11-28 02:11:41,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 108 transitions. [2024-11-28 02:11:41,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:41,783 INFO L218 hiAutomatonCegarLoop]: Abstraction has 85 states and 108 transitions. [2024-11-28 02:11:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 108 transitions. [2024-11-28 02:11:41,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 62. [2024-11-28 02:11:41,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 61 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:41,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 81 transitions. [2024-11-28 02:11:41,791 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 81 transitions. [2024-11-28 02:11:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:11:41,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:11:41,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:11:41,792 INFO L87 Difference]: Start difference. First operand 62 states and 81 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2024-11-28 02:11:41,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:41,828 INFO L93 Difference]: Finished difference Result 63 states and 78 transitions. [2024-11-28 02:11:41,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 78 transitions. [2024-11-28 02:11:41,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-11-28 02:11:41,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 57 states and 72 transitions. [2024-11-28 02:11:41,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2024-11-28 02:11:41,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2024-11-28 02:11:41,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 72 transitions. [2024-11-28 02:11:41,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:41,831 INFO L218 hiAutomatonCegarLoop]: Abstraction has 57 states and 72 transitions. [2024-11-28 02:11:41,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 72 transitions. [2024-11-28 02:11:41,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 41. [2024-11-28 02:11:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 40 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) [2024-11-28 02:11:41,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2024-11-28 02:11:41,835 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-28 02:11:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:11:41,836 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-28 02:11:41,837 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-28 02:11:41,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 52 transitions. [2024-11-28 02:11:41,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-28 02:11:41,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:41,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:41,838 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-28 02:11:41,838 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:41,838 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" [2024-11-28 02:11:41,838 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" [2024-11-28 02:11:41,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:41,839 INFO L85 PathProgramCache]: Analyzing trace with hash -2016539045, now seen corresponding path program 2 times [2024-11-28 02:11:41,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:41,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285222643] [2024-11-28 02:11:41,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:41,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:41,845 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:41,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:41,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:41,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1706293, now seen corresponding path program 2 times [2024-11-28 02:11:41,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:41,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583578686] [2024-11-28 02:11:41,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:41,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:41,854 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:41,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:41,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:41,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1155179889, now seen corresponding path program 2 times [2024-11-28 02:11:41,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:41,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976541539] [2024-11-28 02:11:41,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:41,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:41,867 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:41,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:41,929 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:41,929 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:41,929 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:41,929 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:41,929 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:11:41,929 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,929 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:41,929 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:41,930 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2024-11-28 02:11:41,930 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:41,930 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:41,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:41,997 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:41,997 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:11:41,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:41,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,000 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-28 02:11:42,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:42,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:42,036 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:42,036 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: [] [2024-11-28 02:11:42,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:42,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,052 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-28 02:11:42,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:42,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:42,077 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:42,077 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: [] [2024-11-28 02:11:42,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-28 02:11:42,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,087 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-28 02:11:42,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:42,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:42,112 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:42,112 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:42,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-28 02:11:42,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,123 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-28 02:11:42,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:42,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:42,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:42,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,150 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-28 02:11:42,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:11:42,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:42,200 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:11:42,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-28 02:11:42,204 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:42,204 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:42,204 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:42,204 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:42,204 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:11:42,204 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,204 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:42,204 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:42,204 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2024-11-28 02:11:42,204 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:42,204 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:42,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:42,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:42,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:42,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:42,279 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:42,279 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:11:42,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,282 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-28 02:11:42,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:42,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:42,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:42,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:42,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:42,308 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:42,308 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:42,313 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:42,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-28 02:11:42,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,324 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-28 02:11:42,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:42,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:42,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:42,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:42,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:42,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:42,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:42,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:42,346 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:42,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-28 02:11:42,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,360 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-28 02:11:42,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:42,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:42,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:42,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:42,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:42,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:42,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:42,390 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:42,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-28 02:11:42,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,404 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-28 02:11:42,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:42,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:42,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:42,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:42,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:42,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:42,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:42,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:42,432 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:11:42,436 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:11:42,436 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 02:11:42,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,442 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-28 02:11:42,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:11:42,445 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:11:42,445 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:11:42,445 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 17 Supporting invariants [] [2024-11-28 02:11:42,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-28 02:11:42,458 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:11:42,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:42,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:42,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:42,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:42,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:42,549 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-28 02:11:42,549 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-11-28 02:11:42,609 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 98 states and 117 transitions. Complement of second has 7 states. [2024-11-28 02:11:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:42,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-11-28 02:11:42,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-11-28 02:11:42,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-28 02:11:42,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:42,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-28 02:11:42,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:42,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 8 letters. [2024-11-28 02:11:42,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:42,613 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 117 transitions. [2024-11-28 02:11:42,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-28 02:11:42,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 78 states and 96 transitions. [2024-11-28 02:11:42,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2024-11-28 02:11:42,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-28 02:11:42,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 96 transitions. [2024-11-28 02:11:42,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:42,620 INFO L218 hiAutomatonCegarLoop]: Abstraction has 78 states and 96 transitions. [2024-11-28 02:11:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 96 transitions. [2024-11-28 02:11:42,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 54. [2024-11-28 02:11:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 53 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:42,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2024-11-28 02:11:42,628 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 69 transitions. [2024-11-28 02:11:42,628 INFO L425 stractBuchiCegarLoop]: Abstraction has 54 states and 69 transitions. [2024-11-28 02:11:42,628 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-28 02:11:42,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 69 transitions. [2024-11-28 02:11:42,629 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-28 02:11:42,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:42,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:42,630 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 02:11:42,630 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:42,630 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" [2024-11-28 02:11:42,630 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" [2024-11-28 02:11:42,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:42,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1972696349, now seen corresponding path program 1 times [2024-11-28 02:11:42,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:42,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313118918] [2024-11-28 02:11:42,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:42,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:42,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:42,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313118918] [2024-11-28 02:11:42,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313118918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:42,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568988937] [2024-11-28 02:11:42,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:42,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:42,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:42,741 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:42,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 02:11:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:42,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:42,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:42,800 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:42,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568988937] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:42,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:42,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 02:11:42,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737411632] [2024-11-28 02:11:42,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:42,884 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 02:11:42,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:42,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1606093, now seen corresponding path program 1 times [2024-11-28 02:11:42,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:42,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763644867] [2024-11-28 02:11:42,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:42,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:42,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-11-28 02:11:42,897 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:42,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:42,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-28 02:11:42,964 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:42,964 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:42,964 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:42,965 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:42,965 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:11:42,965 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:42,965 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:42,965 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:42,965 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2024-11-28 02:11:42,965 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:42,965 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:42,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:42,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:42,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:42,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:43,041 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:43,041 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:11:43,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:43,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,043 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-28 02:11:43,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:43,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:43,070 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:43,070 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:43,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-28 02:11:43,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:43,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,080 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-28 02:11:43,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:43,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:43,106 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:43,106 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:43,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-11-28 02:11:43,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:43,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,117 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-28 02:11:43,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:43,120 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:43,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-11-28 02:11:43,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:43,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,144 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-28 02:11:43,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:11:43,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:43,165 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:11:43,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:43,176 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:43,176 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:43,176 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:43,176 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:43,176 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:11:43,176 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:43,176 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:43,176 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:43,176 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2024-11-28 02:11:43,176 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:43,176 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:43,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:43,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:43,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:43,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:43,265 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:43,265 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:11:43,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:43,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,272 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-28 02:11:43,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:43,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:43,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:43,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:43,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:43,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:43,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:43,300 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:43,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-11-28 02:11:43,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:43,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,314 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-28 02:11:43,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:43,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:43,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:43,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:43,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:43,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:43,336 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:43,341 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:43,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:43,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:43,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,355 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-28 02:11:43,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:43,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:43,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:43,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:43,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:43,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:43,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:43,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:43,385 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:11:43,393 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:11:43,394 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 02:11:43,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:43,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,396 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-28 02:11:43,401 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:11:43,401 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:11:43,401 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:11:43,402 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 [] [2024-11-28 02:11:43,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-11-28 02:11:43,413 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:11:43,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:43,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:43,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:43,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:43,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:43,499 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 02:11:43,499 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 69 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:43,536 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 69 transitions. cyclomatic complexity: 19. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 117 states and 158 transitions. Complement of second has 7 states. [2024-11-28 02:11:43,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-28 02:11:43,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-28 02:11:43,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:43,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-28 02:11:43,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:43,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2024-11-28 02:11:43,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:43,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 117 states and 158 transitions. [2024-11-28 02:11:43,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-28 02:11:43,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 117 states to 89 states and 114 transitions. [2024-11-28 02:11:43,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2024-11-28 02:11:43,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2024-11-28 02:11:43,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 114 transitions. [2024-11-28 02:11:43,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:43,550 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 114 transitions. [2024-11-28 02:11:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 114 transitions. [2024-11-28 02:11:43,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2024-11-28 02:11:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 60 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 79 transitions. [2024-11-28 02:11:43,559 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 79 transitions. [2024-11-28 02:11:43,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:11:43,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:11:43,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:11:43,559 INFO L87 Difference]: Start difference. First operand 61 states and 79 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:43,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:43,655 INFO L93 Difference]: Finished difference Result 169 states and 185 transitions. [2024-11-28 02:11:43,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 185 transitions. [2024-11-28 02:11:43,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 37 [2024-11-28 02:11:43,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 141 states and 157 transitions. [2024-11-28 02:11:43,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2024-11-28 02:11:43,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2024-11-28 02:11:43,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 157 transitions. [2024-11-28 02:11:43,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:43,663 INFO L218 hiAutomatonCegarLoop]: Abstraction has 141 states and 157 transitions. [2024-11-28 02:11:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 157 transitions. [2024-11-28 02:11:43,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 110. [2024-11-28 02:11:43,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 110 states have (on average 1.1090909090909091) internal successors, (122), 109 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 122 transitions. [2024-11-28 02:11:43,676 INFO L240 hiAutomatonCegarLoop]: Abstraction has 110 states and 122 transitions. [2024-11-28 02:11:43,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:11:43,678 INFO L425 stractBuchiCegarLoop]: Abstraction has 110 states and 122 transitions. [2024-11-28 02:11:43,681 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-28 02:11:43,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 122 transitions. [2024-11-28 02:11:43,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2024-11-28 02:11:43,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:43,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:43,684 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 7, 7, 6, 2, 2, 1, 1, 1] [2024-11-28 02:11:43,684 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:11:43,684 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" [2024-11-28 02:11:43,684 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" [2024-11-28 02:11:43,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:43,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1113570989, now seen corresponding path program 1 times [2024-11-28 02:11:43,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:43,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860754289] [2024-11-28 02:11:43,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:43,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:43,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:43,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860754289] [2024-11-28 02:11:43,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860754289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:43,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850447872] [2024-11-28 02:11:43,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:43,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:43,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,818 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-28 02:11:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:43,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:43,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:43,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:43,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850447872] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:43,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:43,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-28 02:11:43,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979260074] [2024-11-28 02:11:43,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:43,941 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 02:11:43,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:43,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1606093, now seen corresponding path program 2 times [2024-11-28 02:11:43,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:43,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010925084] [2024-11-28 02:11:43,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:43,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:43,947 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:43,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:44,005 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:44,005 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:44,005 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:44,006 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:44,006 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:11:44,006 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:44,006 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:44,006 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:44,006 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2024-11-28 02:11:44,006 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:44,006 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:44,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:44,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:44,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:44,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:44,078 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:44,078 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:11:44,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:44,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:44,085 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:44,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-28 02:11:44,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:44,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:44,106 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:44,106 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:44,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2024-11-28 02:11:44,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:44,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:44,116 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:44,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-28 02:11:44,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:44,119 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:44,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:44,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:44,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:44,143 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:44,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-28 02:11:44,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:11:44,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:44,163 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:11:44,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:44,174 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:44,174 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:44,174 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:44,174 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:44,174 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:11:44,174 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:44,174 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:44,174 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:44,174 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2024-11-28 02:11:44,174 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:44,175 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:44,175 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:44,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:44,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:44,193 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:44,248 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:44,248 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:11:44,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:44,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:44,252 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:44,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-28 02:11:44,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:44,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:44,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:44,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:44,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:44,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:44,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:44,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:44,272 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:44,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-11-28 02:11:44,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:44,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:44,287 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:44,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-28 02:11:44,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:44,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:44,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:44,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:44,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:44,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:44,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:44,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:44,313 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:11:44,316 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:11:44,316 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 02:11:44,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:44,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:44,318 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:44,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-28 02:11:44,321 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:11:44,321 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:11:44,321 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:11:44,321 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 [] [2024-11-28 02:11:44,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-11-28 02:11:44,330 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:11:44,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:44,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:44,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:44,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:44,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:44,464 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 02:11:44,464 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 110 states and 122 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:44,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 110 states and 122 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 129 states and 145 transitions. Complement of second has 7 states. [2024-11-28 02:11:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-28 02:11:44,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 36 letters. Loop has 4 letters. [2024-11-28 02:11:44,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:44,505 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 02:11:44,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:44,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:44,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:44,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:44,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:44,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-11-28 02:11:44,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:44,697 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 [2024-11-28 02:11:44,697 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 110 states and 122 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:44,742 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 110 states and 122 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 141 states and 157 transitions. Complement of second has 7 states. [2024-11-28 02:11:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:44,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-11-28 02:11:44,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 36 letters. Loop has 4 letters. [2024-11-28 02:11:44,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:44,746 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 02:11:44,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:44,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:44,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:44,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:11:44,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:44,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:44,893 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 [2024-11-28 02:11:44,894 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 110 states and 122 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:44,935 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 110 states and 122 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 137 states and 156 transitions. Complement of second has 8 states. [2024-11-28 02:11:44,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:44,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-11-28 02:11:44,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 36 letters. Loop has 4 letters. [2024-11-28 02:11:44,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:44,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 40 letters. Loop has 4 letters. [2024-11-28 02:11:44,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:44,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-28 02:11:44,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:44,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 156 transitions. [2024-11-28 02:11:44,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2024-11-28 02:11:44,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 112 states and 124 transitions. [2024-11-28 02:11:44,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-28 02:11:44,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2024-11-28 02:11:44,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112 states and 124 transitions. [2024-11-28 02:11:44,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:44,944 INFO L218 hiAutomatonCegarLoop]: Abstraction has 112 states and 124 transitions. [2024-11-28 02:11:44,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states and 124 transitions. [2024-11-28 02:11:44,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 73. [2024-11-28 02:11:44,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 1.1095890410958904) internal successors, (81), 72 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:44,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2024-11-28 02:11:44,948 INFO L240 hiAutomatonCegarLoop]: Abstraction has 73 states and 81 transitions. [2024-11-28 02:11:44,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:11:44,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:11:44,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:11:44,949 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2024-11-28 02:11:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:45,057 INFO L93 Difference]: Finished difference Result 115 states and 123 transitions. [2024-11-28 02:11:45,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 123 transitions. [2024-11-28 02:11:45,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2024-11-28 02:11:45,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 107 states and 115 transitions. [2024-11-28 02:11:45,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2024-11-28 02:11:45,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2024-11-28 02:11:45,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 115 transitions. [2024-11-28 02:11:45,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:45,061 INFO L218 hiAutomatonCegarLoop]: Abstraction has 107 states and 115 transitions. [2024-11-28 02:11:45,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 115 transitions. [2024-11-28 02:11:45,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-28 02:11:45,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.0761904761904761) internal successors, (113), 104 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:45,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2024-11-28 02:11:45,073 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 113 transitions. [2024-11-28 02:11:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:11:45,076 INFO L425 stractBuchiCegarLoop]: Abstraction has 105 states and 113 transitions. [2024-11-28 02:11:45,076 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-28 02:11:45,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 113 transitions. [2024-11-28 02:11:45,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2024-11-28 02:11:45,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:45,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:45,083 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 5, 1, 1, 1, 1] [2024-11-28 02:11:45,083 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [12, 11, 11, 6, 6, 1, 1] [2024-11-28 02:11:45,083 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" [2024-11-28 02:11:45,083 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" [2024-11-28 02:11:45,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:45,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1554348013, now seen corresponding path program 2 times [2024-11-28 02:11:45,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:45,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482154413] [2024-11-28 02:11:45,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:45,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:45,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:45,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482154413] [2024-11-28 02:11:45,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482154413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:45,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566183707] [2024-11-28 02:11:45,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:45,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:45,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:45,256 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:45,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-28 02:11:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:45,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:11:45,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:45,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:45,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566183707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:45,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:45,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 11 [2024-11-28 02:11:45,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663424760] [2024-11-28 02:11:45,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:45,522 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 02:11:45,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:45,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1985436637, now seen corresponding path program 1 times [2024-11-28 02:11:45,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:45,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013479587] [2024-11-28 02:11:45,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:45,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:45,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013479587] [2024-11-28 02:11:45,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013479587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:45,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510322767] [2024-11-28 02:11:45,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:45,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:45,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:45,726 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:45,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-28 02:11:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:45,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:11:45,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:45,827 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:45,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510322767] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:45,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:45,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 11 [2024-11-28 02:11:45,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933970964] [2024-11-28 02:11:45,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:45,990 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 02:11:45,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:11:45,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:11:45,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:11:45,991 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. cyclomatic complexity: 12 Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:46,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:46,183 INFO L93 Difference]: Finished difference Result 213 states and 231 transitions. [2024-11-28 02:11:46,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 231 transitions. [2024-11-28 02:11:46,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 85 [2024-11-28 02:11:46,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 199 states and 217 transitions. [2024-11-28 02:11:46,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2024-11-28 02:11:46,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 153 [2024-11-28 02:11:46,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 199 states and 217 transitions. [2024-11-28 02:11:46,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:46,189 INFO L218 hiAutomatonCegarLoop]: Abstraction has 199 states and 217 transitions. [2024-11-28 02:11:46,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states and 217 transitions. [2024-11-28 02:11:46,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 182. [2024-11-28 02:11:46,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 182 states have (on average 1.098901098901099) internal successors, (200), 181 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:46,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 200 transitions. [2024-11-28 02:11:46,200 INFO L240 hiAutomatonCegarLoop]: Abstraction has 182 states and 200 transitions. [2024-11-28 02:11:46,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:11:46,201 INFO L425 stractBuchiCegarLoop]: Abstraction has 182 states and 200 transitions. [2024-11-28 02:11:46,201 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-28 02:11:46,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 200 transitions. [2024-11-28 02:11:46,203 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2024-11-28 02:11:46,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:46,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:46,207 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1, 1] [2024-11-28 02:11:46,208 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1] [2024-11-28 02:11:46,209 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" [2024-11-28 02:11:46,209 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" [2024-11-28 02:11:46,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:46,210 INFO L85 PathProgramCache]: Analyzing trace with hash 260678979, now seen corresponding path program 3 times [2024-11-28 02:11:46,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:46,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45082286] [2024-11-28 02:11:46,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:46,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:46,236 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:46,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:46,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:46,258 INFO L85 PathProgramCache]: Analyzing trace with hash 311010573, now seen corresponding path program 2 times [2024-11-28 02:11:46,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:46,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616666316] [2024-11-28 02:11:46,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:46,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:46,286 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:46,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:46,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:46,310 INFO L85 PathProgramCache]: Analyzing trace with hash -842515889, now seen corresponding path program 2 times [2024-11-28 02:11:46,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:46,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450037792] [2024-11-28 02:11:46,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:46,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:46,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:11:46,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450037792] [2024-11-28 02:11:46,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450037792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:46,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835096819] [2024-11-28 02:11:46,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:46,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:46,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:46,649 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:46,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-28 02:11:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:46,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:11:46,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:46,815 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:46,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835096819] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:46,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:46,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2024-11-28 02:11:46,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134199133] [2024-11-28 02:11:46,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:47,546 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:47,546 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:47,546 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:47,546 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:47,547 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:11:47,547 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:47,547 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:47,547 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:47,547 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration11_Loop [2024-11-28 02:11:47,547 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:47,547 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:47,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:47,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:47,558 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:47,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:47,633 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:47,634 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:11:47,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:47,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:47,640 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:47,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-28 02:11:47,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:47,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:47,674 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:47,674 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:47,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:47,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:47,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:47,684 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:47,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-28 02:11:47,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:47,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:47,710 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:11:47,710 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:11:47,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:47,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:47,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:47,720 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:47,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-28 02:11:47,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:11:47,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:47,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:47,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:47,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:47,748 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:47,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-28 02:11:47,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:11:47,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:11:47,768 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:11:47,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:47,778 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:11:47,778 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:11:47,778 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:11:47,778 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:11:47,778 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:11:47,778 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:47,779 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:11:47,779 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:11:47,779 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration11_Loop [2024-11-28 02:11:47,779 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:11:47,779 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:11:47,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:47,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:47,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:47,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:11:47,862 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:11:47,863 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:11:47,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:47,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:47,865 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:47,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-28 02:11:47,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:47,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:47,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:47,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:47,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:47,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:11:47,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:11:47,900 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:11:47,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-11-28 02:11:47,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:47,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:47,916 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:47,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-28 02:11:47,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:11:47,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:11:47,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:11:47,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:11:47,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:11:47,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:11:47,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:11:47,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:11:47,967 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:11:47,969 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:11:47,969 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 02:11:47,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:11:47,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:47,972 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:47,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-11-28 02:11:47,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:11:47,974 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:11:47,974 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:11:47,974 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 8 Supporting invariants [] [2024-11-28 02:11:47,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:47,983 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:11:48,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:48,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:11:48,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:48,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:11:48,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:48,349 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 309 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-28 02:11:48,350 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 8 loop predicates [2024-11-28 02:11:48,350 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 182 states and 200 transitions. cyclomatic complexity: 21 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:48,854 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 182 states and 200 transitions. cyclomatic complexity: 21. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 792 states and 835 transitions. Complement of second has 31 states. [2024-11-28 02:11:48,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2024-11-28 02:11:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 72 transitions. [2024-11-28 02:11:48,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 72 transitions. Stem has 44 letters. Loop has 64 letters. [2024-11-28 02:11:48,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:48,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 72 transitions. Stem has 108 letters. Loop has 64 letters. [2024-11-28 02:11:48,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:48,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 72 transitions. Stem has 44 letters. Loop has 128 letters. [2024-11-28 02:11:48,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:11:48,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 792 states and 835 transitions. [2024-11-28 02:11:48,879 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2024-11-28 02:11:48,885 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 792 states to 592 states and 635 transitions. [2024-11-28 02:11:48,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 325 [2024-11-28 02:11:48,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2024-11-28 02:11:48,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 592 states and 635 transitions. [2024-11-28 02:11:48,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:48,886 INFO L218 hiAutomatonCegarLoop]: Abstraction has 592 states and 635 transitions. [2024-11-28 02:11:48,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states and 635 transitions. [2024-11-28 02:11:48,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 443. [2024-11-28 02:11:48,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 443 states have (on average 1.074492099322799) internal successors, (476), 442 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:48,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 476 transitions. [2024-11-28 02:11:48,901 INFO L240 hiAutomatonCegarLoop]: Abstraction has 443 states and 476 transitions. [2024-11-28 02:11:48,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:11:48,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:11:48,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:11:48,902 INFO L87 Difference]: Start difference. First operand 443 states and 476 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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) [2024-11-28 02:11:49,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:49,033 INFO L93 Difference]: Finished difference Result 351 states and 365 transitions. [2024-11-28 02:11:49,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 351 states and 365 transitions. [2024-11-28 02:11:49,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2024-11-28 02:11:49,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 351 states to 289 states and 303 transitions. [2024-11-28 02:11:49,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2024-11-28 02:11:49,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 275 [2024-11-28 02:11:49,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 289 states and 303 transitions. [2024-11-28 02:11:49,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:11:49,041 INFO L218 hiAutomatonCegarLoop]: Abstraction has 289 states and 303 transitions. [2024-11-28 02:11:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states and 303 transitions. [2024-11-28 02:11:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 117. [2024-11-28 02:11:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 117 states have (on average 1.0940170940170941) internal successors, (128), 116 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:11:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 128 transitions. [2024-11-28 02:11:49,045 INFO L240 hiAutomatonCegarLoop]: Abstraction has 117 states and 128 transitions. [2024-11-28 02:11:49,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:11:49,046 INFO L425 stractBuchiCegarLoop]: Abstraction has 117 states and 128 transitions. [2024-11-28 02:11:49,047 INFO L332 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-11-28 02:11:49,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states and 128 transitions. [2024-11-28 02:11:49,048 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2024-11-28 02:11:49,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:11:49,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:11:49,049 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 02:11:49,049 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2024-11-28 02:11:49,049 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" [2024-11-28 02:11:49,049 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 >= 10);" "assume main_~i~0#1 <= 0;main_~up~0#1 := 1;" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume main_~i~0#1 >= 10;main_~up~0#1 := 0;" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" "assume !(main_~i~0#1 >= 10);" "assume !(main_~i~0#1 <= 0);" "assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= 10;" [2024-11-28 02:11:49,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash 29861, now seen corresponding path program 2 times [2024-11-28 02:11:49,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:49,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897316736] [2024-11-28 02:11:49,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:49,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:49,053 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:49,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:49,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:49,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1027707587, now seen corresponding path program 3 times [2024-11-28 02:11:49,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:49,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316879207] [2024-11-28 02:11:49,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:49,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:49,071 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:49,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:49,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:49,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1955464735, now seen corresponding path program 3 times [2024-11-28 02:11:49,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:11:49,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264518816] [2024-11-28 02:11:49,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:49,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:49,100 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:49,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:11:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:49,812 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:11:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:11:49,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:11:49 BoogieIcfgContainer [2024-11-28 02:11:49,851 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 02:11:49,852 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:11:49,852 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:11:49,852 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:11:49,855 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:11:36" (3/4) ... [2024-11-28 02:11:49,858 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 02:11:49,933 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:11:49,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:11:49,934 INFO L158 Benchmark]: Toolchain (without parser) took 13506.08ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 106.6MB in the beginning and 187.9MB in the end (delta: -81.2MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. [2024-11-28 02:11:49,935 INFO L158 Benchmark]: CDTParser took 1.05ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:11:49,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.24ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 96.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:11:49,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.60ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:11:49,937 INFO L158 Benchmark]: Boogie Preprocessor took 27.22ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.9MB in the end (delta: 963.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:11:49,939 INFO L158 Benchmark]: RCFGBuilder took 266.06ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 86.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:11:49,939 INFO L158 Benchmark]: BuchiAutomizer took 12882.44ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 86.2MB in the beginning and 191.1MB in the end (delta: -104.9MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. [2024-11-28 02:11:49,939 INFO L158 Benchmark]: Witness Printer took 81.24ms. Allocated memory is still 352.3MB. Free memory was 191.1MB in the beginning and 187.9MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:11:49,942 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.24ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 96.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.60ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.22ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.9MB in the end (delta: 963.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 266.06ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 86.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 12882.44ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 86.2MB in the beginning and 191.1MB in the end (delta: -104.9MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. * Witness Printer took 81.24ms. Allocated memory is still 352.3MB. Free memory was 191.1MB in the beginning and 187.9MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 16 terminating modules (8 trivial, 7 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long) -2 * i) + 1) and consists of 5 locations. One deterministic module has affine ranking function (((long) -2 * i) + 19) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function ((long) -1 * i) and consists of 4 locations. One deterministic module has affine ranking function (((long) -2 * i) + 17) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * i) + 8) and consists of 16 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 12 locations. The remainder module has 117 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.7s and 12 iterations. TraceHistogramMax:20. Analysis of lassos took 9.2s. Construction of modules took 0.8s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 16. Automata minimization 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 528 StatesRemovedByMinimization, 16 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [7, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 171/480 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 216 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 725 IncrementalHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 134 mSDtfsCounter, 725 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc0 concLT3 SILN0 SILU0 SILI3 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax183 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf90 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] Loop: [L12] COND FALSE !(i >= 10) [L15] COND TRUE i <= 0 [L16] up = 1 [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i >= 10 [L13] up = 0 [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] Loop: [L12] COND FALSE !(i >= 10) [L15] COND TRUE i <= 0 [L16] up = 1 [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i >= 10 [L13] up = 0 [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:11:49,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2024-11-28 02:11:50,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:50,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-28 02:11:50,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:50,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-28 02:11:50,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:51,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:51,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 02:11:51,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:51,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 02:11:51,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:52,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 02:11:52,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fd5477-ed15-4d4e-a8b3-a20235346346/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)