./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl --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 0.2.3-dev-cf1a783 [2023-11-12 02:16:41,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:16:41,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-12 02:16:41,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:16:41,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:16:41,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:16:41,487 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:16:41,488 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:16:41,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:16:41,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:16:41,496 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:16:41,496 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:16:41,497 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:16:41,499 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:16:41,499 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:16:41,500 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:16:41,500 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:16:41,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:16:41,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:16:41,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:16:41,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:16:41,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:16:41,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:16:41,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:16:41,505 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:16:41,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:16:41,505 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:16:41,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:16:41,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:16:41,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:16:41,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:16:41,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:16:41,509 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:16:41,509 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_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48505588d7e651383dbb51501a7ba8151dafe2f0aaf2cdca9e989876f7735131 [2023-11-12 02:16:41,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:16:41,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:16:41,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:16:41,876 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:16:41,877 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:16:41,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/termination-bwb/and-05.c [2023-11-12 02:16:45,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:16:45,279 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:16:45,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/sv-benchmarks/c/termination-bwb/and-05.c [2023-11-12 02:16:45,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/data/f14a812cf/0547f5df3ddc448dbb3a0b7bcb0b0f5e/FLAGb806e4760 [2023-11-12 02:16:45,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/data/f14a812cf/0547f5df3ddc448dbb3a0b7bcb0b0f5e [2023-11-12 02:16:45,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:16:45,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:16:45,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:16:45,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:16:45,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:16:45,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4564f0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45, skipping insertion in model container [2023-11-12 02:16:45,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,340 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:16:45,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:45,488 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:16:45,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:45,511 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:16:45,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45 WrapperNode [2023-11-12 02:16:45,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:16:45,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:16:45,513 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:16:45,513 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:16:45,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,544 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2023-11-12 02:16:45,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:16:45,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:16:45,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:16:45,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:16:45,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,556 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:16:45,564 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:16:45,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:16:45,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:16:45,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (1/1) ... [2023-11-12 02:16:45,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:45,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:45,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:45,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:16:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:16:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:16:45,708 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:16:45,710 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:16:45,825 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:16:45,831 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:16:45,832 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:16:45,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:45 BoogieIcfgContainer [2023-11-12 02:16:45,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:16:45,836 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:16:45,836 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:16:45,839 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:16:45,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:16:45,840 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:16:45" (1/3) ... [2023-11-12 02:16:45,842 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65e9f614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:16:45, skipping insertion in model container [2023-11-12 02:16:45,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:16:45,842 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:45" (2/3) ... [2023-11-12 02:16:45,843 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65e9f614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:16:45, skipping insertion in model container [2023-11-12 02:16:45,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:16:45,843 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:45" (3/3) ... [2023-11-12 02:16:45,845 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-05.c [2023-11-12 02:16:45,908 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:16:45,909 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:16:45,909 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:16:45,909 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:16:45,909 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:16:45,909 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:16:45,910 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:16:45,910 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:16:45,914 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) [2023-11-12 02:16:45,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:16:45,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:16:45,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:16:45,934 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:16:45,934 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:16:45,934 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:16:45,935 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) [2023-11-12 02:16:45,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:16:45,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:16:45,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:16:45,937 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:16:45,937 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:16:45,944 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 8#L16-2true [2023-11-12 02:16:45,945 INFO L750 eck$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 [2023-11-12 02:16:45,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:45,952 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-12 02:16:45,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:45,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562109082] [2023-11-12 02:16:45,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:45,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:46,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:46,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:46,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:46,075 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2023-11-12 02:16:46,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:46,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434025157] [2023-11-12 02:16:46,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:46,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:46,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:46,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:46,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:46,140 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-11-12 02:16:46,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:46,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167645410] [2023-11-12 02:16:46,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:46,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:46,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:46,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:46,326 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:46,327 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:46,327 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:46,327 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:46,327 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:16:46,328 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,328 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:46,328 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:46,328 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration1_Loop [2023-11-12 02:16:46,328 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:46,329 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:46,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:46,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:46,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:46,415 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:46,415 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:16:46,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:46,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:46,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-12 02:16:46,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:16:46,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:46,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:16:46,467 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: [] [2023-11-12 02:16:46,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:46,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:46,473 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:46,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:16:46,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:46,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-12 02:16:46,499 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:16:46,500 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: [] [2023-11-12 02:16:46,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:46,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:46,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:46,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-12 02:16:46,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:16:46,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:46,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:46,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:46,553 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:46,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:16:46,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:46,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-12 02:16:46,596 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:16:46,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:46,601 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:46,601 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:46,601 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:46,601 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:46,602 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:16:46,602 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,602 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:46,602 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:46,602 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration1_Loop [2023-11-12 02:16:46,602 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:46,603 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:46,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:46,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:46,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:46,681 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:46,686 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:16:46,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:46,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:46,697 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 [2023-11-12 02:16:46,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:46,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:46,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-12 02:16:46,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:46,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:16:46,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:46,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:16:46,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:46,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:46,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:46,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:46,747 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:46,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-12 02:16:46,755 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 [2023-11-12 02:16:46,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:46,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:46,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:46,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:16:46,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:46,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:16:46,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:46,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:46,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:46,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:46,796 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:46,808 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 [2023-11-12 02:16:46,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:46,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:46,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:46,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:16:46,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:46,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-12 02:16:46,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:16:46,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:46,862 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:16:46,865 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-12 02:16:46,865 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-12 02:16:46,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:46,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:46,905 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:46,925 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:16:46,925 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:16:46,926 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:16:46,926 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 [] [2023-11-12 02:16:46,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-12 02:16:46,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:46,939 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:16:46,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:46,986 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:16:46,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:47,011 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:16:47,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:47,111 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 [2023-11-12 02:16:47,113 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) [2023-11-12 02:16:47,243 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. [2023-11-12 02:16:47,245 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 [2023-11-12 02:16:47,250 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) [2023-11-12 02:16:47,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 27 transitions. [2023-11-12 02:16:47,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-12 02:16:47,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:47,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-12 02:16:47,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:47,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-12 02:16:47,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:47,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2023-11-12 02:16:47,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:16:47,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 20 states and 28 transitions. [2023-11-12 02:16:47,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-12 02:16:47,264 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-12 02:16:47,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2023-11-12 02:16:47,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:16:47,266 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 28 transitions. [2023-11-12 02:16:47,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2023-11-12 02:16:47,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2023-11-12 02:16:47,292 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) [2023-11-12 02:16:47,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-12 02:16:47,295 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-12 02:16:47,295 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-12 02:16:47,295 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:16:47,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-11-12 02:16:47,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:16:47,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:16:47,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:16:47,297 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-12 02:16:47,297 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:16:47,298 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 [2023-11-12 02:16:47,298 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 [2023-11-12 02:16:47,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:47,306 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-12 02:16:47,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:47,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262052943] [2023-11-12 02:16:47,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:47,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:47,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:47,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:47,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:47,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1419160, now seen corresponding path program 1 times [2023-11-12 02:16:47,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:47,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806766326] [2023-11-12 02:16:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:47,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:47,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:47,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:47,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723007, now seen corresponding path program 1 times [2023-11-12 02:16:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:47,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124568875] [2023-11-12 02:16:47,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:47,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:47,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:47,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:47,391 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:47,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:47,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:47,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:47,391 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:16:47,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:47,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:47,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:47,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration2_Loop [2023-11-12 02:16:47,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:47,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:47,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:47,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:47,434 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:47,434 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:16:47,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:47,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:47,439 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:47,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:16:47,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:47,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-12 02:16:47,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:47,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:47,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:47,489 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:47,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:16:47,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:47,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-12 02:16:47,602 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:16:47,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:47,621 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:47,621 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:47,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:47,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:47,622 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:16:47,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:47,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:47,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:47,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration2_Loop [2023-11-12 02:16:47,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:47,622 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:47,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:47,639 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:47,677 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:47,678 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:16:47,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:47,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:47,680 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:47,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-12 02:16:47,692 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 [2023-11-12 02:16:47,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:47,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:47,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:47,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:16:47,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:47,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:16:47,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:47,718 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:16:47,725 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-12 02:16:47,725 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-12 02:16:47,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:47,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:47,730 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:47,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:16:47,741 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:16:47,741 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:16:47,741 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 [] [2023-11-12 02:16:47,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-12 02:16:47,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:47,761 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:16:47,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:47,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:16:47,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:47,804 WARN L260 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:16:47,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:47,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:47,869 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 [2023-11-12 02:16:47,870 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) [2023-11-12 02:16:47,955 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. [2023-11-12 02:16:47,955 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 [2023-11-12 02:16:47,956 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) [2023-11-12 02:16:47,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2023-11-12 02:16:47,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-12 02:16:47,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:47,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-12 02:16:47,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:47,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-12 02:16:47,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:47,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2023-11-12 02:16:47,967 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:16:47,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 27 states and 36 transitions. [2023-11-12 02:16:47,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-12 02:16:47,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-12 02:16:47,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2023-11-12 02:16:47,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:16:47,971 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 36 transitions. [2023-11-12 02:16:47,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2023-11-12 02:16:47,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2023-11-12 02:16:47,976 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) [2023-11-12 02:16:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2023-11-12 02:16:47,982 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 33 transitions. [2023-11-12 02:16:47,982 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2023-11-12 02:16:47,982 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-12 02:16:47,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2023-11-12 02:16:47,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:16:47,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:16:47,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:16:47,984 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-12 02:16:47,984 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:16:47,984 INFO L748 eck$LassoCheckResult]: Stem: 209#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 210#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 214#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 200#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 202#L17-2 assume !(main_~x~0#1 - 1 == main_~y~0#1);assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 <= main_~x~0#1 - 1;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1;assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 >= 0;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 > main_~x~0#1 - 1 + main_~y~0#1;assume main_#t~nondet2#1 >= -2147483648; 206#L17-4 [2023-11-12 02:16:47,984 INFO L750 eck$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 [2023-11-12 02:16:47,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:47,985 INFO L85 PathProgramCache]: Analyzing trace with hash 28699821, now seen corresponding path program 1 times [2023-11-12 02:16:47,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:47,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545791394] [2023-11-12 02:16:47,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:47,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:47,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:48,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:48,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:48,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1619800, now seen corresponding path program 2 times [2023-11-12 02:16:48,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:48,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744109036] [2023-11-12 02:16:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:48,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:48,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:48,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:48,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash 644902404, now seen corresponding path program 1 times [2023-11-12 02:16:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:48,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613655957] [2023-11-12 02:16:48,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:48,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:48,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:48,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613655957] [2023-11-12 02:16:48,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613655957] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:16:48,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881416591] [2023-11-12 02:16:48,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:48,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:16:48,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:48,188 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:16:48,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-12 02:16:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:48,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:16:48,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:48,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:48,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881416591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:48,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:16:48,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-12 02:16:48,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374388089] [2023-11-12 02:16:48,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:48,336 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:48,338 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:48,338 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:48,338 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:48,338 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:16:48,338 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:48,339 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:48,339 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:48,339 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration3_Loop [2023-11-12 02:16:48,339 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:48,340 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:48,341 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:48,383 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:48,383 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:16:48,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:48,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:48,390 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:48,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:16:48,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:48,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-12 02:16:48,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:48,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:48,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:48,454 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:48,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:16:48,469 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:48,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-12 02:16:53,139 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:16:53,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:53,143 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:53,144 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:53,144 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:53,144 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:53,144 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:16:53,144 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:53,144 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:53,144 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:53,144 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration3_Loop [2023-11-12 02:16:53,144 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:53,144 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:53,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:53,197 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:53,198 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:16:53,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:53,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:53,199 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:53,205 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 [2023-11-12 02:16:53,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-12 02:16:53,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:53,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:53,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:53,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:16:53,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:53,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:16:53,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:53,232 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:16:53,239 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-12 02:16:53,239 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-12 02:16:53,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:53,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:53,246 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:53,248 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:16:53,248 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:16:53,248 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:16:53,248 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 [] [2023-11-12 02:16:53,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-12 02:16:53,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:53,259 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:16:53,261 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-12 02:16:53,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:53,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:16:53,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:53,295 WARN L260 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:16:53,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:53,329 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 [2023-11-12 02:16:53,329 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) [2023-11-12 02:16:53,357 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. [2023-11-12 02:16:53,357 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 [2023-11-12 02:16:53,359 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) [2023-11-12 02:16:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-12 02:16:53,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-12 02:16:53,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:53,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-12 02:16:53,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:53,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 8 letters. [2023-11-12 02:16:53,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:53,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 77 transitions. [2023-11-12 02:16:53,388 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-12 02:16:53,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 55 states and 75 transitions. [2023-11-12 02:16:53,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-12 02:16:53,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-12 02:16:53,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2023-11-12 02:16:53,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:16:53,390 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-11-12 02:16:53,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2023-11-12 02:16:53,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2023-11-12 02:16:53,395 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) [2023-11-12 02:16:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2023-11-12 02:16:53,396 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 73 transitions. [2023-11-12 02:16:53,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:53,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:16:53,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:16:53,401 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) [2023-11-12 02:16:53,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:53,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:53,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:53,484 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2023-11-12 02:16:53,485 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 70 transitions. [2023-11-12 02:16:53,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:16:53,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 48 states and 61 transitions. [2023-11-12 02:16:53,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-12 02:16:53,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-12 02:16:53,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions. [2023-11-12 02:16:53,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:16:53,488 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 61 transitions. [2023-11-12 02:16:53,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions. [2023-11-12 02:16:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 30. [2023-11-12 02:16:53,491 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) [2023-11-12 02:16:53,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2023-11-12 02:16:53,492 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 41 transitions. [2023-11-12 02:16:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:53,493 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 41 transitions. [2023-11-12 02:16:53,493 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-12 02:16:53,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 41 transitions. [2023-11-12 02:16:53,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:16:53,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:16:53,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:16:53,496 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-12 02:16:53,497 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:16:53,497 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 [2023-11-12 02:16:53,497 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 [2023-11-12 02:16:53,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:53,498 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-12 02:16:53,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:53,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595769886] [2023-11-12 02:16:53,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:53,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:53,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:53,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:53,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:53,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 1 times [2023-11-12 02:16:53,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:53,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243963558] [2023-11-12 02:16:53,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:53,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:53,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:53,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:53,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:53,522 INFO L85 PathProgramCache]: Analyzing trace with hash 297897967, now seen corresponding path program 1 times [2023-11-12 02:16:53,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:53,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660099263] [2023-11-12 02:16:53,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:53,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:53,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:16:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:16:53,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:16:53,639 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:53,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:53,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:53,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:53,639 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:16:53,639 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:53,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:53,640 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:53,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Loop [2023-11-12 02:16:53,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:53,640 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:53,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:53,806 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:53,807 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:16:53,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:53,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:53,811 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:53,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-12 02:16:53,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:16:53,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:53,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:53,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:53,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:53,866 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:53,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:16:53,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:53,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-12 02:16:54,104 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:16:54,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,108 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:54,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:54,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:54,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:54,108 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:16:54,108 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,109 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:54,109 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:54,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Loop [2023-11-12 02:16:54,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:54,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:54,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:54,256 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:54,256 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:16:54,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:54,257 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:54,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-12 02:16:54,269 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 [2023-11-12 02:16:54,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:54,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:54,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:54,284 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:54,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:54,296 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-12 02:16:54,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:54,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:54,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,315 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-12 02:16:54,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:54,317 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:54,328 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 [2023-11-12 02:16:54,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-12 02:16:54,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:54,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:54,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:54,341 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:54,341 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-12 02:16:54,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:16:54,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:54,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:54,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,370 INFO L490 LassoAnalysis]: Using template '3-nested'. [2023-11-12 02:16:54,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:54,371 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:54,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-12 02:16:54,374 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 [2023-11-12 02:16:54,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:54,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:54,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:54,386 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:54,386 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-12 02:16:54,391 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-12 02:16:54,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:54,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:54,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,413 INFO L490 LassoAnalysis]: Using template '4-nested'. [2023-11-12 02:16:54,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:54,414 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:54,418 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 [2023-11-12 02:16:54,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-12 02:16:54,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:54,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:54,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:54,432 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:54,432 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-11-12 02:16:54,438 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2023-11-12 02:16:54,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:54,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:54,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,467 INFO L490 LassoAnalysis]: Using template '2-phase'. [2023-11-12 02:16:54,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:54,469 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:54,475 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 [2023-11-12 02:16:54,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-12 02:16:54,488 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-12 02:16:54,489 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-11-12 02:16:54,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:54,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:54,489 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:54,489 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-12 02:16:54,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:16:54,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:54,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:54,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,523 INFO L490 LassoAnalysis]: Using template '3-phase'. [2023-11-12 02:16:54,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:54,524 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:54,529 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 [2023-11-12 02:16:54,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-12 02:16:54,543 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-12 02:16:54,544 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2023-11-12 02:16:54,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:54,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:54,544 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:54,544 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-12 02:16:54,554 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-12 02:16:54,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:54,576 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:54,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,585 INFO L490 LassoAnalysis]: Using template '4-phase'. [2023-11-12 02:16:54,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:54,587 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:54,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-12 02:16:54,609 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-12 02:16:54,609 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2023-11-12 02:16:54,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:54,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:54,609 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:54,609 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-11-12 02:16:54,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-12 02:16:54,626 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2023-11-12 02:16:54,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:54,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:54,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,672 INFO L490 LassoAnalysis]: Using template '2-lex'. [2023-11-12 02:16:54,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:54,673 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:54,677 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 [2023-11-12 02:16:54,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-12 02:16:54,690 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-12 02:16:54,691 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-11-12 02:16:54,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:54,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:54,691 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:54,691 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-12 02:16:54,696 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-12 02:16:54,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:54,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:54,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,727 INFO L490 LassoAnalysis]: Using template '3-lex'. [2023-11-12 02:16:54,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:54,728 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:54,735 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 [2023-11-12 02:16:54,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-12 02:16:54,749 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-12 02:16:54,749 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2023-11-12 02:16:54,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:54,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:54,750 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:54,750 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2023-11-12 02:16:54,762 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2023-11-12 02:16:54,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:54,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:54,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:54,825 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:54,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:54,826 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:54,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:54,826 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:16:54,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:54,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:54,827 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:54,827 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Lasso [2023-11-12 02:16:54,827 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:54,827 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:54,828 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:54,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:54,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:54,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:54,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:55,013 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:55,014 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:16:55,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:55,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:55,015 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:55,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:16:55,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:55,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-12 02:16:55,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:55,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:55,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:55,065 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:55,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:16:55,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:16:55,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-12 02:16:55,283 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:16:55,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-12 02:16:55,287 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:16:55,287 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:16:55,287 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:16:55,287 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:16:55,287 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:16:55,288 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:55,288 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:16:55,288 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:16:55,288 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Lasso [2023-11-12 02:16:55,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:16:55,288 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:16:55,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:55,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:55,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:55,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:55,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:16:55,490 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:16:55,490 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:16:55,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:55,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:55,495 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:55,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-12 02:16:55,504 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 [2023-11-12 02:16:55,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:55,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:55,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:55,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:16:55,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:55,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:16:55,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:55,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:55,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:55,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:55,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:55,540 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:55,547 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 [2023-11-12 02:16:55,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:55,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:55,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:55,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:16:55,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:55,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:16:55,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:55,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-12 02:16:55,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:55,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:55,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:55,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:55,579 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:55,583 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 [2023-11-12 02:16:55,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:55,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:16:55,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:55,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:16:55,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:55,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:16:55,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:16:55,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-12 02:16:55,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:16:55,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:55,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:55,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:55,619 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:55,627 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 [2023-11-12 02:16:55,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-12 02:16:55,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:16:55,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:16:55,640 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-12 02:16:55,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:16:55,651 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-12 02:16:55,651 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-12 02:16:55,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:16:55,742 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2023-11-12 02:16:55,742 INFO L444 ModelExtractionUtils]: 6 out of 21 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-11-12 02:16:55,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:16:55,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:55,744 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:55,749 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:16:55,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-12 02:16:55,763 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2023-11-12 02:16:55,764 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:16:55,764 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 [1*ULTIMATE.start_main_~x~0#1 >= 0, -4*ULTIMATE.start_main_~y~0#1 + 5*ULTIMATE.start_main_~x~0#1 >= 0] [2023-11-12 02:16:55,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:55,777 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-12 02:16:55,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:55,822 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:16:55,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:55,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:16:55,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:56,042 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 [2023-11-12 02:16:56,042 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) [2023-11-12 02:16:56,169 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. [2023-11-12 02:16:56,170 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 [2023-11-12 02:16:56,171 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) [2023-11-12 02:16:56,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2023-11-12 02:16:56,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-12 02:16:56,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:56,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-12 02:16:56,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:56,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 4 letters. Loop has 8 letters. [2023-11-12 02:16:56,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:16:56,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 75 transitions. [2023-11-12 02:16:56,173 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:16:56,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 0 states and 0 transitions. [2023-11-12 02:16:56,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-12 02:16:56,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-12 02:16:56,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-12 02:16:56,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:56,174 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:16:56,174 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:16:56,174 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:16:56,174 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-12 02:16:56,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:16:56,174 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:16:56,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-12 02:16:56,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:16:56 BoogieIcfgContainer [2023-11-12 02:16:56,183 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:16:56,183 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:16:56,183 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:16:56,183 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:16:56,184 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:45" (3/4) ... [2023-11-12 02:16:56,186 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:16:56,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:16:56,188 INFO L158 Benchmark]: Toolchain (without parser) took 10883.08ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 117.8MB in the beginning and 109.4MB in the end (delta: 8.4MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2023-11-12 02:16:56,188 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 157.3MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:16:56,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.84ms. Allocated memory is still 157.3MB. Free memory was 117.8MB in the beginning and 108.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:16:56,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.57ms. Allocated memory is still 157.3MB. Free memory was 108.3MB in the beginning and 107.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:16:56,189 INFO L158 Benchmark]: Boogie Preprocessor took 18.40ms. Allocated memory is still 157.3MB. Free memory was 107.1MB in the beginning and 105.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:16:56,190 INFO L158 Benchmark]: RCFGBuilder took 270.21ms. Allocated memory is still 157.3MB. Free memory was 105.8MB in the beginning and 97.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:16:56,190 INFO L158 Benchmark]: BuchiAutomizer took 10347.09ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 96.9MB in the beginning and 109.4MB in the end (delta: -12.6MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-11-12 02:16:56,190 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 188.7MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:16:56,192 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 157.3MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.84ms. Allocated memory is still 157.3MB. Free memory was 117.8MB in the beginning and 108.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.57ms. Allocated memory is still 157.3MB. Free memory was 108.3MB in the beginning and 107.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.40ms. Allocated memory is still 157.3MB. Free memory was 107.1MB in the beginning and 105.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.21ms. Allocated memory is still 157.3MB. Free memory was 105.8MB in the beginning and 97.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10347.09ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 96.9MB in the beginning and 109.4MB in the end (delta: -12.6MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 188.7MB. Free memory is still 109.4MB. There was no memory consumed. 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 10.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 9.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. 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, 0.2s 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: 146ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-12 02:16:56,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:56,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:56,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9835952d-b8d9-4168-95af-c845d7541688/bin/uautomizer-verify-uTZkv6EMXl/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