./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ --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 7598e0946f5292d261b929b388079f7fb794bee1a1e7afaa45add76236cc5a38 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:44:08,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:44:08,340 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-23 21:44:08,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:44:08,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:44:08,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:44:08,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:44:08,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:44:08,389 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:44:08,394 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:44:08,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:44:08,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:44:08,396 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:44:08,398 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 21:44:08,399 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 21:44:08,400 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 21:44:08,400 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 21:44:08,401 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 21:44:08,401 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 21:44:08,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:44:08,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 21:44:08,403 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:44:08,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:44:08,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 21:44:08,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 21:44:08,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 21:44:08,406 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:44:08,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:44:08,407 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 21:44:08,407 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:44:08,409 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:44:08,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:44:08,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:44:08,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:44:08,411 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 21:44:08,411 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_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7598e0946f5292d261b929b388079f7fb794bee1a1e7afaa45add76236cc5a38 [2023-11-23 21:44:08,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:44:08,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:44:08,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:44:08,752 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:44:08,753 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:44:08,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-bwb/or-02.c [2023-11-23 21:44:11,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:44:12,139 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:44:12,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/sv-benchmarks/c/termination-bwb/or-02.c [2023-11-23 21:44:12,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/data/2a75ef7dc/8f5379afb96349ab9246033e4021741a/FLAGe3a147d3f [2023-11-23 21:44:12,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/data/2a75ef7dc/8f5379afb96349ab9246033e4021741a [2023-11-23 21:44:12,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:44:12,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:44:12,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:44:12,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:44:12,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:44:12,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5662067b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12, skipping insertion in model container [2023-11-23 21:44:12,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,215 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:44:12,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:44:12,364 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:44:12,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:44:12,389 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:44:12,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12 WrapperNode [2023-11-23 21:44:12,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:44:12,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:44:12,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:44:12,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:44:12,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,423 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-11-23 21:44:12,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:44:12,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:44:12,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:44:12,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:44:12,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,438 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,444 INFO L189 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-23 21:44:12,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,445 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:44:12,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:44:12,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:44:12,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:44:12,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (1/1) ... [2023-11-23 21:44:12,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:12,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:12,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:12,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 21:44:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:44:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:44:12,588 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:44:12,591 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:44:12,686 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:44:12,696 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:44:12,697 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:44:12,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:12 BoogieIcfgContainer [2023-11-23 21:44:12,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:44:12,700 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 21:44:12,700 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 21:44:12,704 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 21:44:12,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:44:12,705 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 09:44:12" (1/3) ... [2023-11-23 21:44:12,706 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7334fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:44:12, skipping insertion in model container [2023-11-23 21:44:12,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:44:12,707 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:12" (2/3) ... [2023-11-23 21:44:12,707 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7334fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:44:12, skipping insertion in model container [2023-11-23 21:44:12,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:44:12,708 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:12" (3/3) ... [2023-11-23 21:44:12,709 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-02.c [2023-11-23 21:44:12,767 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 21:44:12,768 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 21:44:12,768 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 21:44:12,768 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 21:44:12,768 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 21:44:12,768 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 21:44:12,768 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 21:44:12,769 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 21:44:12,773 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) [2023-11-23 21:44:12,789 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:12,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:12,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:12,793 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:44:12,793 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 21:44:12,794 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 21:44:12,794 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) [2023-11-23 21:44:12,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:12,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:12,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:12,796 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:44:12,796 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 21:44:12,803 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2#L19-2true [2023-11-23 21:44:12,803 INFO L750 eck$LassoCheckResult]: Loop: 2#L19-2true assume !!(main_~x~0#1 > 0); 8#L20true assume 0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1;main_#t~nondet1#1 := 1 + main_~b~0#1; 9#L20-4true main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2#L19-2true [2023-11-23 21:44:12,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:12,809 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-23 21:44:12,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:12,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809839936] [2023-11-23 21:44:12,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:12,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:12,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:12,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:12,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2023-11-23 21:44:12,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:12,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239376725] [2023-11-23 21:44:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:12,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:12,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:12,934 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:12,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-11-23 21:44:12,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:12,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931683668] [2023-11-23 21:44:12,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:12,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:13,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:13,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931683668] [2023-11-23 21:44:13,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931683668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:13,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:13,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:44:13,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012595395] [2023-11-23 21:44:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:13,150 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:13,151 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:13,151 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:13,151 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:13,152 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:44:13,152 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:13,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:13,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:13,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration1_Loop [2023-11-23 21:44:13,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:13,153 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:13,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:13,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:13,193 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:13,263 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:13,264 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:44:13,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:13,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:13,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:13,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:44:13,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:13,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 21:44:13,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:13,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:13,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:13,325 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:13,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:44:13,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:13,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 21:44:13,355 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:44:13,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:13,376 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:13,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:13,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:13,376 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:13,377 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:13,377 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:13,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:13,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:13,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration1_Loop [2023-11-23 21:44:13,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:13,377 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:13,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:13,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:13,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:13,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:13,474 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:13,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:13,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:13,481 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:13,493 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 [2023-11-23 21:44:13,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:13,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:13,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:13,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:13,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:13,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:13,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:13,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 21:44:13,531 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:13,536 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 21:44:13,536 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 21:44:13,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:13,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:13,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:13,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 21:44:13,571 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:13,571 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:44:13,572 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:13,572 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 1 Supporting invariants [] [2023-11-23 21:44:13,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:13,600 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:44:13,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:13,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:44:13,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:13,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:44:13,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:13,771 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-23 21:44:13,774 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) [2023-11-23 21:44:13,843 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 28 states and 39 transitions. Complement of second has 8 states. [2023-11-23 21:44:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:13,850 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) [2023-11-23 21:44:13,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2023-11-23 21:44:13,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-23 21:44:13,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:13,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-23 21:44:13,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:13,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-23 21:44:13,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:13,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2023-11-23 21:44:13,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:13,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 13 states and 18 transitions. [2023-11-23 21:44:13,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-23 21:44:13,902 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-23 21:44:13,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-11-23 21:44:13,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:13,914 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-23 21:44:13,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:13,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-11-23 21:44:13,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2023-11-23 21:44:13,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:13,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2023-11-23 21:44:13,997 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-11-23 21:44:13,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:14,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:44:14,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:14,003 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2023-11-23 21:44:14,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:14,034 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2023-11-23 21:44:14,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2023-11-23 21:44:14,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:14,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2023-11-23 21:44:14,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-23 21:44:14,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-23 21:44:14,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2023-11-23 21:44:14,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:44:14,041 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-23 21:44:14,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2023-11-23 21:44:14,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-23 21:44:14,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:14,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-11-23 21:44:14,045 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-23 21:44:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:44:14,046 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-23 21:44:14,046 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 21:44:14,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2023-11-23 21:44:14,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:14,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:14,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:14,051 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-23 21:44:14,051 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 21:44:14,053 INFO L748 eck$LassoCheckResult]: Stem: 108#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 109#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_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 104#L19-2 assume !!(main_~x~0#1 > 0); 105#L20 assume !(0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1); 106#L20-2 assume !(0 == 1 + main_~b~0#1);assume (main_~b~0#1 < 0 && 1 + main_~b~0#1 >= 0) || main_#t~nondet1#1 >= 1 + main_~b~0#1;assume (main_~b~0#1 >= 0 && 1 + main_~b~0#1 < 0) || main_#t~nondet1#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || 1 + main_~b~0#1 < 0) || main_#t~nondet1#1 <= main_~b~0#1 + (1 + main_~b~0#1);assume (main_~b~0#1 >= 0 && 1 + main_~b~0#1 >= 0) || main_#t~nondet1#1 < 0;assume main_#t~nondet1#1 <= 2147483647; 107#L20-4 [2023-11-23 21:44:14,053 INFO L750 eck$LassoCheckResult]: Loop: 107#L20-4 main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 110#L19-2 assume !!(main_~x~0#1 > 0); 112#L20 assume 0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1;main_#t~nondet1#1 := 1 + main_~b~0#1; 107#L20-4 [2023-11-23 21:44:14,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,054 INFO L85 PathProgramCache]: Analyzing trace with hash 28699821, now seen corresponding path program 1 times [2023-11-23 21:44:14,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362088029] [2023-11-23 21:44:14,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:14,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,107 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 2 times [2023-11-23 21:44:14,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171003122] [2023-11-23 21:44:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:14,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,121 INFO L85 PathProgramCache]: Analyzing trace with hash 297897965, now seen corresponding path program 1 times [2023-11-23 21:44:14,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471844616] [2023-11-23 21:44:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:14,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:14,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:14,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471844616] [2023-11-23 21:44:14,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471844616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:14,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:14,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:44:14,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660519127] [2023-11-23 21:44:14,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:14,296 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:14,296 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:14,296 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:14,296 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:14,297 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:44:14,297 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:14,297 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:14,297 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:14,297 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration2_Loop [2023-11-23 21:44:14,297 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:14,298 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:14,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,361 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:14,361 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:44:14,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:14,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:14,363 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:14,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:44:14,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:14,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-23 21:44:14,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:14,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:14,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:14,416 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:14,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-23 21:44:14,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:44:14,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:14,447 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:44:14,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:14,472 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:14,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:14,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:14,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:14,472 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:14,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:14,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:14,472 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:14,472 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration2_Loop [2023-11-23 21:44:14,472 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:14,473 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:14,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,485 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,553 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:14,554 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:14,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:14,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:14,555 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:14,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-23 21:44:14,567 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 [2023-11-23 21:44:14,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:14,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:14,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:14,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:14,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:14,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:14,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:14,593 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:14,596 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 21:44:14,596 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 21:44:14,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:14,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:14,599 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:14,609 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:14,609 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:44:14,609 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:14,609 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~nondet1#1) = -2*ULTIMATE.start_main_#t~nondet1#1 + 1 Supporting invariants [] [2023-11-23 21:44:14,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-23 21:44:14,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:14,642 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:44:14,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-23 21:44:14,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:14,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:44:14,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:14,692 WARN L260 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:44:14,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:14,722 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-23 21:44:14,723 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:14,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 6 states. [2023-11-23 21:44:14,772 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 [2023-11-23 21:44:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-23 21:44:14,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-23 21:44:14,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:14,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2023-11-23 21:44:14,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:14,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 6 letters. [2023-11-23 21:44:14,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:14,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2023-11-23 21:44:14,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:14,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2023-11-23 21:44:14,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-23 21:44:14,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-23 21:44:14,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2023-11-23 21:44:14,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:14,785 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-23 21:44:14,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2023-11-23 21:44:14,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-11-23 21:44:14,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:14,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-11-23 21:44:14,789 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-23 21:44:14,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:14,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:44:14,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:44:14,791 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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) [2023-11-23 21:44:14,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:14,831 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-11-23 21:44:14,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2023-11-23 21:44:14,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:14,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 10 transitions. [2023-11-23 21:44:14,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-23 21:44:14,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-23 21:44:14,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 10 transitions. [2023-11-23 21:44:14,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:44:14,833 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-11-23 21:44:14,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 10 transitions. [2023-11-23 21:44:14,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 6. [2023-11-23 21:44:14,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:14,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-23 21:44:14,834 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 6 transitions. [2023-11-23 21:44:14,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:44:14,835 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2023-11-23 21:44:14,835 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-23 21:44:14,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2023-11-23 21:44:14,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:14,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:14,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:14,836 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:44:14,836 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:44:14,837 INFO L748 eck$LassoCheckResult]: Stem: 216#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 212#L19-2 [2023-11-23 21:44:14,837 INFO L750 eck$LassoCheckResult]: Loop: 212#L19-2 assume !!(main_~x~0#1 > 0); 213#L20 assume !(0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1); 214#L20-2 assume !(0 == 1 + main_~b~0#1);assume (main_~b~0#1 < 0 && 1 + main_~b~0#1 >= 0) || main_#t~nondet1#1 >= 1 + main_~b~0#1;assume (main_~b~0#1 >= 0 && 1 + main_~b~0#1 < 0) || main_#t~nondet1#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || 1 + main_~b~0#1 < 0) || main_#t~nondet1#1 <= main_~b~0#1 + (1 + main_~b~0#1);assume (main_~b~0#1 >= 0 && 1 + main_~b~0#1 >= 0) || main_#t~nondet1#1 < 0;assume main_#t~nondet1#1 <= 2147483647; 215#L20-4 main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 212#L19-2 [2023-11-23 21:44:14,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,837 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-23 21:44:14,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473955348] [2023-11-23 21:44:14,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:14,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1267272, now seen corresponding path program 1 times [2023-11-23 21:44:14,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834565440] [2023-11-23 21:44:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:14,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,866 INFO L85 PathProgramCache]: Analyzing trace with hash 889694474, now seen corresponding path program 1 times [2023-11-23 21:44:14,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130367082] [2023-11-23 21:44:14,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:15,067 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:15,067 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:15,068 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:15,068 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:15,068 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:44:15,068 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,068 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:15,068 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:15,068 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration3_Loop [2023-11-23 21:44:15,068 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:15,068 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:15,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:15,244 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:15,244 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:44:15,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,246 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-23 21:44:15,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:44:15,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:15,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,313 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:44:15,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:15,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-23 21:44:15,376 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:44:15,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,386 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:15,386 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:15,386 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:15,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:15,386 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:15,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:15,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:15,387 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration3_Loop [2023-11-23 21:44:15,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:15,387 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:15,388 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:15,555 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:15,555 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:15,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,559 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,562 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 [2023-11-23 21:44:15,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:15,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,575 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 21:44:15,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-23 21:44:15,582 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-23 21:44:15,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:15,596 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:15,600 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 21:44:15,601 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 21:44:15,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,604 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,610 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:15,610 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:44:15,610 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:15,611 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 4294967293 Supporting invariants [] [2023-11-23 21:44:15,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-23 21:44:15,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,636 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:44:15,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:15,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:44:15,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:15,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:44:15,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:15,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:15,800 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-23 21:44:15,801 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 6 transitions. cyclomatic complexity: 1 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:15,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,850 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 6 transitions. cyclomatic complexity: 1. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 11 transitions. Complement of second has 6 states. [2023-11-23 21:44:15,850 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 [2023-11-23 21:44:15,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2023-11-23 21:44:15,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-23 21:44:15,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:15,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-23 21:44:15,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:15,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-23 21:44:15,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:15,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-11-23 21:44:15,857 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 21:44:15,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2023-11-23 21:44:15,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-23 21:44:15,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-23 21:44:15,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-23 21:44:15,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:44:15,858 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:44:15,858 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:44:15,858 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:44:15,858 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-23 21:44:15,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:44:15,859 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 21:44:15,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-23 21:44:15,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 09:44:15 BoogieIcfgContainer [2023-11-23 21:44:15,867 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 21:44:15,868 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:44:15,868 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:44:15,868 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:44:15,869 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:12" (3/4) ... [2023-11-23 21:44:15,871 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:44:15,872 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:44:15,877 INFO L158 Benchmark]: Toolchain (without parser) took 3688.17ms. Allocated memory is still 169.9MB. Free memory was 142.0MB in the beginning and 134.0MB in the end (delta: 8.0MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-11-23 21:44:15,878 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 123.7MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:44:15,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.50ms. Allocated memory is still 169.9MB. Free memory was 141.6MB in the beginning and 132.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:44:15,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.34ms. Allocated memory is still 169.9MB. Free memory was 132.1MB in the beginning and 130.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:44:15,880 INFO L158 Benchmark]: Boogie Preprocessor took 34.28ms. Allocated memory is still 169.9MB. Free memory was 130.8MB in the beginning and 129.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:44:15,881 INFO L158 Benchmark]: RCFGBuilder took 239.73ms. Allocated memory is still 169.9MB. Free memory was 129.5MB in the beginning and 120.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:44:15,883 INFO L158 Benchmark]: BuchiAutomizer took 3167.42ms. Allocated memory is still 169.9MB. Free memory was 120.8MB in the beginning and 134.0MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:44:15,889 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 169.9MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:44:15,891 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 123.7MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.50ms. Allocated memory is still 169.9MB. Free memory was 141.6MB in the beginning and 132.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.34ms. Allocated memory is still 169.9MB. Free memory was 132.1MB in the beginning and 130.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.28ms. Allocated memory is still 169.9MB. Free memory was 130.8MB in the beginning and 129.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 239.73ms. Allocated memory is still 169.9MB. Free memory was 129.5MB in the beginning and 120.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3167.42ms. Allocated memory is still 169.9MB. Free memory was 120.8MB in the beginning and 134.0MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 169.9MB. Free memory is still 134.0MB. 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~nondet1 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 (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((-2 * b) + 1) 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 * b) + 4294967293) and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 25 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf92 smp100 dnf157 smp81 tf110 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 55ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-23 21:44:15,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b82160-cd94-45d6-92be-d2a66328bbcf/bin/uautomizer-verify-zZY32mL2XJ/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