./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 48505588d7e651383dbb51501a7ba8151dafe2f0aaf2cdca9e989876f7735131 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:36:42,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:36:42,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-28 20:36:42,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:36:42,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:36:42,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:36:42,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:36:42,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:36:42,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:36:42,548 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:36:42,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:36:42,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:36:42,550 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:36:42,551 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-28 20:36:42,551 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-28 20:36:42,552 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-28 20:36:42,552 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-28 20:36:42,553 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-28 20:36:42,553 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-28 20:36:42,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:36:42,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-28 20:36:42,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:36:42,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:36:42,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-28 20:36:42,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-28 20:36:42,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-28 20:36:42,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:36:42,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:36:42,560 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-28 20:36:42,560 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:36:42,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:36:42,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:36:42,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:36:42,561 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:36:42,562 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-28 20:36:42,562 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48505588d7e651383dbb51501a7ba8151dafe2f0aaf2cdca9e989876f7735131 [2023-11-28 20:36:42,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:36:42,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:36:42,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:36:42,795 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:36:42,796 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:36:42,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-bwb/and-05.c [2023-11-28 20:36:45,568 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:36:45,715 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:36:45,716 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/sv-benchmarks/c/termination-bwb/and-05.c [2023-11-28 20:36:45,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/data/2fa3a3d3c/0a799aad0d3c4000b11e3f488e6bc991/FLAGadfd6754e [2023-11-28 20:36:45,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/data/2fa3a3d3c/0a799aad0d3c4000b11e3f488e6bc991 [2023-11-28 20:36:45,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:36:45,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:36:45,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:36:45,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:36:45,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:36:45,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3ef6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45, skipping insertion in model container [2023-11-28 20:36:45,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,767 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:36:45,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:36:45,904 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:36:45,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:36:45,927 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:36:45,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45 WrapperNode [2023-11-28 20:36:45,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:36:45,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:36:45,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:36:45,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:36:45,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,957 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2023-11-28 20:36:45,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:36:45,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:36:45,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:36:45,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:36:45,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,976 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-28 20:36:45,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:36:45,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:36:45,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:36:45,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:36:45,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (1/1) ... [2023-11-28 20:36:45,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:46,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:46,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-28 20:36:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:36:46,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:36:46,118 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:36:46,120 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:36:46,208 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:36:46,218 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:36:46,218 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:36:46,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:46 BoogieIcfgContainer [2023-11-28 20:36:46,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:36:46,221 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-28 20:36:46,222 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-28 20:36:46,226 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-28 20:36:46,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 20:36:46,227 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:36:45" (1/3) ... [2023-11-28 20:36:46,228 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@398fe2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:36:46, skipping insertion in model container [2023-11-28 20:36:46,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 20:36:46,228 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:45" (2/3) ... [2023-11-28 20:36:46,228 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@398fe2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:36:46, skipping insertion in model container [2023-11-28 20:36:46,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 20:36:46,229 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:46" (3/3) ... [2023-11-28 20:36:46,230 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-05.c [2023-11-28 20:36:46,286 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-28 20:36:46,286 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-28 20:36:46,286 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-28 20:36:46,287 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-28 20:36:46,287 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-28 20:36:46,287 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-28 20:36:46,287 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-28 20:36:46,288 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-28 20:36:46,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:46,310 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:36:46,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:36:46,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:36:46,315 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-28 20:36:46,316 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:36:46,316 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-28 20:36:46,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:46,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:36:46,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:36:46,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:36:46,318 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-28 20:36:46,318 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:36:46,325 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 8#L16-2true [2023-11-28 20:36:46,326 INFO L750 eck$LassoCheckResult]: Loop: 8#L16-2true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 3#L17true assume 0 == main_~x~0#1 - 1 || 0 == main_~y~0#1;main_#t~nondet2#1 := 0; 10#L17-4true main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8#L16-2true [2023-11-28 20:36:46,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:46,331 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-28 20:36:46,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:46,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744452756] [2023-11-28 20:36:46,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:46,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:46,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:46,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:46,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:46,435 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2023-11-28 20:36:46,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:46,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971455889] [2023-11-28 20:36:46,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:46,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:46,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:46,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:46,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:46,462 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-11-28 20:36:46,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:46,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22039908] [2023-11-28 20:36:46,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:46,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:46,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:46,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:46,573 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:46,574 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:46,574 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:46,574 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:46,574 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:36:46,574 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,574 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:46,574 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:46,575 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration1_Loop [2023-11-28 20:36:46,575 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:46,575 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:46,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:46,601 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:46,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:46,653 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:46,654 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:36:46,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:46,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:46,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-28 20:36:46,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:46,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:46,684 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:36:46,684 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:36:46,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:46,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:46,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:46,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-28 20:36:46,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:46,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:46,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:36:46,704 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:36:46,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-28 20:36:46,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:46,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:46,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-28 20:36:46,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:46,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:46,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-28 20:36:46,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:46,734 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:46,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-28 20:36:46,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:36:46,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:46,752 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:36:46,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-28 20:36:46,756 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:46,756 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:46,757 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:46,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:46,757 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:36:46,757 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,757 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:46,757 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:46,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration1_Loop [2023-11-28 20:36:46,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:46,758 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:46,759 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:46,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:46,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:46,810 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:46,814 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:36:46,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:46,817 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:46,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:46,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-28 20:36:46,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:46,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:46,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:46,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:46,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:46,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:46,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:46,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:46,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:46,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:46,859 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:46,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-28 20:36:46,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:46,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:46,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:46,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:46,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:46,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:46,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:46,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:46,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:46,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-28 20:36:46,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:46,899 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:46,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-28 20:36:46,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:46,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:46,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:46,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:46,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:46,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:46,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:46,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:46,922 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:36:46,924 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-28 20:36:46,925 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-28 20:36:46,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:46,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:46,948 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:46,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-28 20:36:46,951 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:36:46,951 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 20:36:46,952 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:36:46,952 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-28 20:36:46,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-28 20:36:46,958 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 20:36:46,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:46,990 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:36:46,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:47,005 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:36:47,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:47,074 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 [2023-11-28 20:36:47,076 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:47,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 52 transitions. Complement of second has 14 states. [2023-11-28 20:36:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-28 20:36:47,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 27 transitions. [2023-11-28 20:36:47,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-28 20:36:47,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:47,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-28 20:36:47,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:47,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-28 20:36:47,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:47,180 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2023-11-28 20:36:47,182 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:36:47,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 20 states and 28 transitions. [2023-11-28 20:36:47,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-28 20:36:47,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-28 20:36:47,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2023-11-28 20:36:47,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:36:47,187 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 28 transitions. [2023-11-28 20:36:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2023-11-28 20:36:47,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2023-11-28 20:36:47,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:47,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-28 20:36:47,208 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-28 20:36:47,208 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-28 20:36:47,208 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-28 20:36:47,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-11-28 20:36:47,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:36:47,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:36:47,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:36:47,209 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-28 20:36:47,209 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-28 20:36:47,209 INFO L748 eck$LassoCheckResult]: Stem: 111#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 112#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 115#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 108#L17 [2023-11-28 20:36:47,210 INFO L750 eck$LassoCheckResult]: Loop: 108#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 104#L17-2 assume main_~x~0#1 - 1 == main_~y~0#1;main_#t~nondet2#1 := main_~x~0#1 - 1; 105#L17-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 113#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 108#L17 [2023-11-28 20:36:47,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:47,210 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-28 20:36:47,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:47,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833270562] [2023-11-28 20:36:47,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:47,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:47,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:47,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1419160, now seen corresponding path program 1 times [2023-11-28 20:36:47,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:47,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071276804] [2023-11-28 20:36:47,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:47,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:47,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:47,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723007, now seen corresponding path program 1 times [2023-11-28 20:36:47,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:47,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998429243] [2023-11-28 20:36:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:47,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:47,281 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:47,281 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:47,281 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:47,281 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:47,281 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:36:47,281 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:47,282 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:47,282 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:47,282 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration2_Loop [2023-11-28 20:36:47,282 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:47,282 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:47,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:47,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:47,318 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:47,318 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:36:47,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:47,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:47,319 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:47,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-28 20:36:47,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:47,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:47,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-28 20:36:47,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:47,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:47,339 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:47,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-28 20:36:47,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:36:47,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:47,436 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:36:47,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-28 20:36:47,440 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:47,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:47,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:47,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:47,440 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:36:47,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:47,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:47,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:47,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration2_Loop [2023-11-28 20:36:47,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:47,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:47,442 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:47,448 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:47,477 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:47,477 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:36:47,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:47,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:47,479 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:47,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-28 20:36:47,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:47,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:47,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:47,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:47,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:47,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:47,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:47,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:47,500 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:36:47,505 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-28 20:36:47,505 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-28 20:36:47,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:47,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:47,512 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:47,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-28 20:36:47,520 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:36:47,520 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 20:36:47,520 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:36:47,520 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-28 20:36:47,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-28 20:36:47,525 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 20:36:47,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:47,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:36:47,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:47,555 WARN L260 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:36:47,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:47,594 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 [2023-11-28 20:36:47,595 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:47,644 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 43 transitions. Complement of second has 9 states. [2023-11-28 20:36:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-28 20:36:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2023-11-28 20:36:47,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-28 20:36:47,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:47,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-28 20:36:47,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:47,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-28 20:36:47,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:47,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2023-11-28 20:36:47,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:36:47,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 27 states and 36 transitions. [2023-11-28 20:36:47,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-28 20:36:47,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-28 20:36:47,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2023-11-28 20:36:47,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:36:47,650 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 36 transitions. [2023-11-28 20:36:47,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2023-11-28 20:36:47,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2023-11-28 20:36:47,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:47,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2023-11-28 20:36:47,654 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 33 transitions. [2023-11-28 20:36:47,654 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2023-11-28 20:36:47,654 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-28 20:36:47,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2023-11-28 20:36:47,655 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:36:47,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:36:47,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:36:47,655 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-28 20:36:47,655 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-28 20:36:47,656 INFO L748 eck$LassoCheckResult]: Stem: 209#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 210#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 214#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 200#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 202#L17-2 assume !(main_~x~0#1 - 1 == main_~y~0#1);assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 <= main_~x~0#1 - 1;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1;assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 >= 0;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 > main_~x~0#1 - 1 + main_~y~0#1;assume main_#t~nondet2#1 >= -2147483648; 206#L17-4 [2023-11-28 20:36:47,656 INFO L750 eck$LassoCheckResult]: Loop: 206#L17-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 211#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 212#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 216#L17-2 assume main_~x~0#1 - 1 == main_~y~0#1;main_#t~nondet2#1 := main_~x~0#1 - 1; 206#L17-4 [2023-11-28 20:36:47,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:47,656 INFO L85 PathProgramCache]: Analyzing trace with hash 28699821, now seen corresponding path program 1 times [2023-11-28 20:36:47,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:47,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066098509] [2023-11-28 20:36:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:47,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,666 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:47,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1619800, now seen corresponding path program 2 times [2023-11-28 20:36:47,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:47,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516454253] [2023-11-28 20:36:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:47,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:47,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:47,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:47,686 INFO L85 PathProgramCache]: Analyzing trace with hash 644902404, now seen corresponding path program 1 times [2023-11-28 20:36:47,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:47,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542908184] [2023-11-28 20:36:47,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:47,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:47,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:36:47,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542908184] [2023-11-28 20:36:47,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542908184] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:36:47,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138300313] [2023-11-28 20:36:47,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:47,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:36:47,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:47,786 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:36:47,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-28 20:36:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:47,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:36:47,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:47,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:36:47,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138300313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:36:47,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:36:47,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-28 20:36:47,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125009128] [2023-11-28 20:36:47,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:36:47,924 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:47,924 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:47,924 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:47,924 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:47,924 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:36:47,924 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:47,925 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:47,925 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:47,925 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration3_Loop [2023-11-28 20:36:47,925 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:47,925 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:47,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:47,964 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:47,964 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:36:47,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:47,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:47,968 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:47,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-28 20:36:47,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:47,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:48,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-28 20:36:48,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:48,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:48,003 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:48,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-28 20:36:48,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:36:48,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:51,778 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:36:51,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-28 20:36:51,782 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:51,783 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:51,783 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:51,783 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:51,783 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:36:51,783 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:51,783 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:51,783 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:51,783 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration3_Loop [2023-11-28 20:36:51,783 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:51,783 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:51,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:51,818 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:51,819 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:36:51,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:51,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:51,820 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:51,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-28 20:36:51,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:51,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:51,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:51,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:51,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:51,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:51,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:51,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:51,843 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:36:51,848 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-28 20:36:51,849 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-28 20:36:51,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:51,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:51,856 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:51,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-28 20:36:51,860 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:36:51,860 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 20:36:51,860 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:36:51,860 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~nondet2#1) = 1*ULTIMATE.start_main_#t~nondet2#1 Supporting invariants [] [2023-11-28 20:36:51,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-28 20:36:51,865 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 20:36:51,866 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-28 20:36:51,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:51,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:36:51,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:51,899 WARN L260 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:36:51,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:51,934 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 [2023-11-28 20:36:51,934 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:51,968 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 77 transitions. Complement of second has 7 states. [2023-11-28 20:36:51,968 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 [2023-11-28 20:36:51,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:51,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-28 20:36:51,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-28 20:36:51,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:51,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-28 20:36:51,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:51,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 8 letters. [2023-11-28 20:36:51,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:51,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 77 transitions. [2023-11-28 20:36:51,973 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-28 20:36:51,975 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 55 states and 75 transitions. [2023-11-28 20:36:51,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-28 20:36:51,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-28 20:36:51,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2023-11-28 20:36:51,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:36:51,975 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-11-28 20:36:51,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2023-11-28 20:36:51,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2023-11-28 20:36:51,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.3773584905660377) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:51,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2023-11-28 20:36:51,981 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 73 transitions. [2023-11-28 20:36:51,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:36:51,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:36:51,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:36:51,985 INFO L87 Difference]: Start difference. First operand 53 states and 73 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:52,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:36:52,018 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2023-11-28 20:36:52,018 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 70 transitions. [2023-11-28 20:36:52,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:36:52,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 48 states and 61 transitions. [2023-11-28 20:36:52,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-28 20:36:52,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-28 20:36:52,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions. [2023-11-28 20:36:52,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:36:52,022 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 61 transitions. [2023-11-28 20:36:52,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions. [2023-11-28 20:36:52,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 30. [2023-11-28 20:36:52,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 29 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:52,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2023-11-28 20:36:52,025 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 41 transitions. [2023-11-28 20:36:52,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:36:52,027 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 41 transitions. [2023-11-28 20:36:52,027 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-28 20:36:52,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 41 transitions. [2023-11-28 20:36:52,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:36:52,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:36:52,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:36:52,029 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-28 20:36:52,029 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-28 20:36:52,030 INFO L748 eck$LassoCheckResult]: Stem: 480#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 481#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 482#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 485#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 471#L17-2 [2023-11-28 20:36:52,030 INFO L750 eck$LassoCheckResult]: Loop: 471#L17-2 assume !(main_~x~0#1 - 1 == main_~y~0#1);assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 <= main_~x~0#1 - 1;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1;assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 >= 0;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 > main_~x~0#1 - 1 + main_~y~0#1;assume main_#t~nondet2#1 >= -2147483648; 472#L17-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 477#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 475#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 471#L17-2 [2023-11-28 20:36:52,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:52,030 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-28 20:36:52,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:52,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149138172] [2023-11-28 20:36:52,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:52,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:52,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:52,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:52,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:52,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 1 times [2023-11-28 20:36:52,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:52,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840476416] [2023-11-28 20:36:52,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:52,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:52,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:52,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:52,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:52,052 INFO L85 PathProgramCache]: Analyzing trace with hash 297897967, now seen corresponding path program 1 times [2023-11-28 20:36:52,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:52,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941314989] [2023-11-28 20:36:52,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:52,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:52,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:52,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:52,158 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:52,158 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:52,158 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:52,158 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:52,159 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:36:52,159 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,159 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:52,159 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:52,159 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Loop [2023-11-28 20:36:52,159 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:52,159 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:52,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:52,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-28 20:36:52,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-28 20:36:52,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:52,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:52,301 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:36:52,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,302 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-28 20:36:52,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:52,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:52,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:52,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,337 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-28 20:36:52,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:36:52,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:52,518 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:36:52,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-28 20:36:52,522 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:52,522 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:52,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:52,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:52,522 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:36:52,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,522 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:52,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:52,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Loop [2023-11-28 20:36:52,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:52,523 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:52,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:52,618 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:52,618 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:36:52,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,619 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-28 20:36:52,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:52,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:52,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:52,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:52,632 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:52,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:52,634 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-28 20:36:52,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:52,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:52,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-28 20:36:52,641 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-28 20:36:52,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,642 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-28 20:36:52,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:52,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:52,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:52,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:52,655 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:52,655 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:36:52,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:36:52,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:52,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:52,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-28 20:36:52,667 INFO L490 LassoAnalysis]: Using template '3-nested'. [2023-11-28 20:36:52,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,668 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-28 20:36:52,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:52,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:52,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:52,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:52,681 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:52,681 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-28 20:36:52,685 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-28 20:36:52,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:52,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:52,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:52,695 INFO L490 LassoAnalysis]: Using template '4-nested'. [2023-11-28 20:36:52,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,696 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-28 20:36:52,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:52,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:52,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:52,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:52,712 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:52,712 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-11-28 20:36:52,716 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2023-11-28 20:36:52,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:52,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:52,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-28 20:36:52,727 INFO L490 LassoAnalysis]: Using template '2-phase'. [2023-11-28 20:36:52,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,728 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-28 20:36:52,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:52,741 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-28 20:36:52,741 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-11-28 20:36:52,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:52,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:52,741 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:52,741 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:36:52,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:36:52,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:52,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:52,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-28 20:36:52,761 INFO L490 LassoAnalysis]: Using template '3-phase'. [2023-11-28 20:36:52,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,762 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-28 20:36:52,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:52,781 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-28 20:36:52,781 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2023-11-28 20:36:52,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:52,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:52,782 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:52,782 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-28 20:36:52,789 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-28 20:36:52,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:52,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:52,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-28 20:36:52,813 INFO L490 LassoAnalysis]: Using template '4-phase'. [2023-11-28 20:36:52,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,814 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-28 20:36:52,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:52,829 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-28 20:36:52,830 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2023-11-28 20:36:52,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:52,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:52,830 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:52,830 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-11-28 20:36:52,841 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2023-11-28 20:36:52,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:52,875 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:52,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:52,880 INFO L490 LassoAnalysis]: Using template '2-lex'. [2023-11-28 20:36:52,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,881 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-28 20:36:52,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:52,896 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-28 20:36:52,896 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-11-28 20:36:52,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:52,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:52,897 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:52,897 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-28 20:36:52,901 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-28 20:36:52,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:52,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:52,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-28 20:36:52,916 INFO L490 LassoAnalysis]: Using template '3-lex'. [2023-11-28 20:36:52,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:52,918 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:52,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-28 20:36:52,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:52,933 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-28 20:36:52,933 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2023-11-28 20:36:52,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:52,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:52,934 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:52,934 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2023-11-28 20:36:52,941 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2023-11-28 20:36:52,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:52,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:52,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-28 20:36:52,992 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:52,992 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:52,992 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:52,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:52,993 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:36:52,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:52,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:52,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:52,993 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Lasso [2023-11-28 20:36:52,993 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:52,993 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:52,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,149 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:53,149 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:36:53,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:53,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:53,150 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:53,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:53,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:53,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-28 20:36:53,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-28 20:36:53,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:53,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:53,179 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:53,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-28 20:36:53,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:36:53,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:53,371 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:36:53,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-28 20:36:53,375 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:53,375 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:53,375 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:53,375 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:53,375 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:36:53,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:53,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:53,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:53,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Lasso [2023-11-28 20:36:53,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:53,376 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:53,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:53,529 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:53,529 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:36:53,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:53,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:53,531 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:53,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-28 20:36:53,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:53,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:53,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:53,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:53,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:53,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:53,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:53,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:53,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:53,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-28 20:36:53,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:53,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:53,557 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:53,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-28 20:36:53,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:53,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:53,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:53,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:53,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:53,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:53,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:53,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:53,573 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:53,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-28 20:36:53,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:53,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:53,577 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:53,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-28 20:36:53,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:53,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:53,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:53,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:53,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:53,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:53,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:53,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:53,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:53,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:53,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:53,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:53,609 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:53,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-28 20:36:53,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:53,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:53,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:53,621 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:53,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:53,630 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-28 20:36:53,630 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-28 20:36:53,650 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:36:53,686 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2023-11-28 20:36:53,687 INFO L444 ModelExtractionUtils]: 6 out of 21 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-11-28 20:36:53,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:53,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:53,688 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:53,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-28 20:36:53,692 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:36:53,705 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2023-11-28 20:36:53,705 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:36:53,705 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~x~0#1 Supporting invariants [-4*ULTIMATE.start_main_~y~0#1 + 5*ULTIMATE.start_main_~x~0#1 >= 0, 1*ULTIMATE.start_main_~x~0#1 >= 0] [2023-11-28 20:36:53,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-28 20:36:53,717 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-28 20:36:53,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:53,748 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:36:53,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:53,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:36:53,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:53,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-28 20:36:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:53,946 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-28 20:36:53,946 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 41 transitions. cyclomatic complexity: 15 Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:54,038 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 41 transitions. cyclomatic complexity: 15. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 75 transitions. Complement of second has 9 states. [2023-11-28 20:36:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-28 20:36:54,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:54,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2023-11-28 20:36:54,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-28 20:36:54,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:54,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-28 20:36:54,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:54,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 4 letters. Loop has 8 letters. [2023-11-28 20:36:54,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:54,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 75 transitions. [2023-11-28 20:36:54,042 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 20:36:54,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 0 states and 0 transitions. [2023-11-28 20:36:54,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-28 20:36:54,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-28 20:36:54,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-28 20:36:54,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:36:54,042 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:36:54,042 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:36:54,042 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:36:54,042 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-28 20:36:54,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:36:54,042 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 20:36:54,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-28 20:36:54,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:36:54 BoogieIcfgContainer [2023-11-28 20:36:54,048 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-28 20:36:54,048 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:36:54,048 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:36:54,048 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:36:54,049 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:46" (3/4) ... [2023-11-28 20:36:54,050 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:36:54,051 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:36:54,051 INFO L158 Benchmark]: Toolchain (without parser) took 8311.38ms. Allocated memory is still 182.5MB. Free memory was 144.7MB in the beginning and 131.7MB in the end (delta: 13.0MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-11-28 20:36:54,051 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 134.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:36:54,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.60ms. Allocated memory is still 182.5MB. Free memory was 144.2MB in the beginning and 135.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 20:36:54,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.66ms. Allocated memory is still 182.5MB. Free memory was 134.7MB in the beginning and 133.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:36:54,052 INFO L158 Benchmark]: Boogie Preprocessor took 27.93ms. Allocated memory is still 182.5MB. Free memory was 133.7MB in the beginning and 132.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:36:54,052 INFO L158 Benchmark]: RCFGBuilder took 234.26ms. Allocated memory is still 182.5MB. Free memory was 132.1MB in the beginning and 123.2MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 20:36:54,053 INFO L158 Benchmark]: BuchiAutomizer took 7826.38ms. Allocated memory is still 182.5MB. Free memory was 123.2MB in the beginning and 132.8MB in the end (delta: -9.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:36:54,053 INFO L158 Benchmark]: Witness Printer took 2.37ms. Allocated memory is still 182.5MB. Free memory was 132.8MB in the beginning and 131.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:36:54,055 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 134.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.60ms. Allocated memory is still 182.5MB. Free memory was 144.2MB in the beginning and 135.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.66ms. Allocated memory is still 182.5MB. Free memory was 134.7MB in the beginning and 133.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.93ms. Allocated memory is still 182.5MB. Free memory was 133.7MB in the beginning and 132.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 234.26ms. Allocated memory is still 182.5MB. Free memory was 132.1MB in the beginning and 123.2MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 7826.38ms. Allocated memory is still 182.5MB. Free memory was 123.2MB in the beginning and 132.8MB in the end (delta: -9.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.37ms. Allocated memory is still 182.5MB. Free memory was 132.8MB in the beginning and 131.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 8 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function null and consists of 4 locations. One deterministic module has affine ranking function ((2 * x) + y) and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 6.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 29 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp94 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf93 smp89 dnf157 smp77 tf106 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 97ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-28 20:36:54,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-28 20:36:54,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8f5079-d22d-461a-91e7-ba2ddf8b8749/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE