./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/a.06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/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_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/a.06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/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_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/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 90244b6c2e1b1f029f80e9cfc86fb57c09347d52a85284d5d619fffbbf31f641 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:35:58,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:35:58,481 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-23 22:35:58,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:35:58,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:35:58,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:35:58,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:35:58,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:35:58,529 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:35:58,529 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:35:58,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:35:58,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:35:58,531 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:35:58,532 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 22:35:58,532 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 22:35:58,533 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 22:35:58,533 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 22:35:58,534 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 22:35:58,534 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 22:35:58,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:35:58,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 22:35:58,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:35:58,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:35:58,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 22:35:58,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 22:35:58,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 22:35:58,543 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:35:58,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:35:58,544 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 22:35:58,544 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:35:58,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:35:58,546 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:35:58,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:35:58,547 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:35:58,547 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 22:35:58,548 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_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90244b6c2e1b1f029f80e9cfc86fb57c09347d52a85284d5d619fffbbf31f641 [2023-11-23 22:35:58,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:35:58,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:35:58,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:35:58,894 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:35:58,895 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:35:58,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-restricted-15/a.06.c [2023-11-23 22:36:02,069 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:36:02,345 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:36:02,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/sv-benchmarks/c/termination-restricted-15/a.06.c [2023-11-23 22:36:02,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/data/8afe3eed3/805d93c9cad54a628ee8a843e8f4dfc7/FLAG52604c0c1 [2023-11-23 22:36:02,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/data/8afe3eed3/805d93c9cad54a628ee8a843e8f4dfc7 [2023-11-23 22:36:02,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:36:02,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:36:02,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:36:02,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:36:02,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:36:02,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da9451a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02, skipping insertion in model container [2023-11-23 22:36:02,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,420 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:36:02,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:36:02,613 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:36:02,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:36:02,647 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:36:02,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02 WrapperNode [2023-11-23 22:36:02,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:36:02,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:36:02,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:36:02,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:36:02,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,679 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-23 22:36:02,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:36:02,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:36:02,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:36:02,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:36:02,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,693 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,700 INFO L189 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-23 22:36:02,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,701 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:36:02,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:36:02,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:36:02,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:36:02,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (1/1) ... [2023-11-23 22:36:02,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:36:02,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:02,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:36:02,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 22:36:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:36:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:36:02,953 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:36:02,956 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:36:03,040 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:36:03,050 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:36:03,050 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:36:03,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:03 BoogieIcfgContainer [2023-11-23 22:36:03,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:36:03,053 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 22:36:03,054 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 22:36:03,058 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 22:36:03,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:36:03,059 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 10:36:02" (1/3) ... [2023-11-23 22:36:03,060 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@473b7868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:36:03, skipping insertion in model container [2023-11-23 22:36:03,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:36:03,060 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:02" (2/3) ... [2023-11-23 22:36:03,061 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@473b7868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:36:03, skipping insertion in model container [2023-11-23 22:36:03,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:36:03,061 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:03" (3/3) ... [2023-11-23 22:36:03,063 INFO L332 chiAutomizerObserver]: Analyzing ICFG a.06.c [2023-11-23 22:36:03,118 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 22:36:03,118 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 22:36:03,118 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 22:36:03,118 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 22:36:03,119 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 22:36:03,119 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 22:36:03,119 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 22:36:03,119 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 22:36:03,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:03,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-23 22:36:03,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:36:03,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:36:03,142 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 22:36:03,142 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-23 22:36:03,143 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 22:36:03,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:03,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-23 22:36:03,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:36:03,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:36:03,144 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 22:36:03,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-23 22:36:03,151 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 2#L12-2true [2023-11-23 22:36:03,152 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(((((main_~y~0#1 >= 0 && main_~z~0#1 < 2147483647 - main_~y~0#1) || (main_~y~0#1 < 0 && main_~z~0#1 > -2147483648 - main_~y~0#1)) && main_~x~0#1 > main_~y~0#1 + main_~z~0#1) && main_~y~0#1 < 2147483647) && main_~z~0#1 < 2147483647);main_~y~0#1 := 1 + main_~y~0#1;main_~z~0#1 := 1 + main_~z~0#1; 2#L12-2true [2023-11-23 22:36:03,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:03,156 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-23 22:36:03,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:03,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835625951] [2023-11-23 22:36:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:03,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:36:03,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:36:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:36:03,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:36:03,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:03,274 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-11-23 22:36:03,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:03,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841925019] [2023-11-23 22:36:03,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:03,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:36:03,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:36:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:36:03,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:36:03,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:03,309 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-23 22:36:03,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:03,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602118623] [2023-11-23 22:36:03,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:03,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:36:03,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:36:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:36:03,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:36:03,677 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:36:03,677 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:36:03,678 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:36:03,678 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:36:03,678 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:36:03,678 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:36:03,678 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:36:03,679 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:36:03,679 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2023-11-23 22:36:03,679 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:36:03,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:36:03,700 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 22:36:03,712 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 22:36:03,717 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 22:36:03,969 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:36:03,969 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:36:03,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:36:03,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:03,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:36:03,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:36:03,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:36:04,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 22:36:04,035 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:36:04,035 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:36:04,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-23 22:36:04,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:36:04,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:04,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:36:04,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 22:36:04,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:36:04,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:36:04,078 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:36:04,079 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:36:04,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-23 22:36:04,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:36:04,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:04,104 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:36:04,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 22:36:04,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:36:04,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:36:04,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:36:04,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:36:04,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:04,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:36:04,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 22:36:04,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:36:04,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:36:04,229 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:36:04,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:36:04,237 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:36:04,238 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:36:04,238 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:36:04,238 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:36:04,238 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:36:04,238 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:36:04,238 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:36:04,239 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:36:04,239 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2023-11-23 22:36:04,239 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:36:04,239 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:36:04,242 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 22:36:04,300 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 22:36:04,304 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 22:36:04,470 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:36:04,475 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:36:04,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:36:04,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:04,478 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:36:04,486 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 22:36:04,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:36:04,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:36:04,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:36:04,500 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 22:36:04,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:36:04,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-23 22:36:04,508 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-23 22:36:04,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:36:04,520 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:36:04,529 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:36:04,530 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:36:04,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:36:04,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:04,570 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:36:04,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-23 22:36:04,576 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:36:04,577 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:36:04,578 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:36:04,578 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = -2*ULTIMATE.start_main_~z~0#1 + 4294967293 Supporting invariants [] [2023-11-23 22:36:04,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:36:04,606 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:36:04,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:04,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:36:04,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:36:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:04,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:36:04,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:36:04,685 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 22:36:04,739 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-23 22:36:04,741 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 22:36:04,785 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 14 states and 17 transitions. Complement of second has 6 states. [2023-11-23 22:36:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-23 22:36:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 22:36:04,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-23 22:36:04,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 1 letters. [2023-11-23 22:36:04,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:36:04,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-23 22:36:04,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:36:04,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-23 22:36:04,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:36:04,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-23 22:36:04,804 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:36:04,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2023-11-23 22:36:04,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-23 22:36:04,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-23 22:36:04,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-23 22:36:04,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:04,808 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:36:04,808 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:36:04,808 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:36:04,809 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 22:36:04,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:36:04,809 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:36:04,809 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-23 22:36:04,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 10:36:04 BoogieIcfgContainer [2023-11-23 22:36:04,818 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 22:36:04,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:36:04,819 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:36:04,819 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:36:04,820 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:03" (3/4) ... [2023-11-23 22:36:04,822 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:36:04,823 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:36:04,824 INFO L158 Benchmark]: Toolchain (without parser) took 2446.58ms. Allocated memory is still 188.7MB. Free memory was 157.0MB in the beginning and 86.4MB in the end (delta: 70.6MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,825 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 100.4MB in the beginning and 100.3MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:36:04,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.35ms. Allocated memory is still 188.7MB. Free memory was 156.8MB in the beginning and 150.3MB in the end (delta: 6.5MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.62ms. Allocated memory is still 188.7MB. Free memory was 150.3MB in the beginning and 149.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,827 INFO L158 Benchmark]: Boogie Preprocessor took 34.42ms. Allocated memory is still 188.7MB. Free memory was 149.0MB in the beginning and 148.2MB in the end (delta: 838.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:36:04,828 INFO L158 Benchmark]: RCFGBuilder took 335.93ms. Allocated memory is still 188.7MB. Free memory was 147.8MB in the beginning and 153.2MB in the end (delta: -5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,829 INFO L158 Benchmark]: BuchiAutomizer took 1764.42ms. Allocated memory is still 188.7MB. Free memory was 152.3MB in the beginning and 86.4MB in the end (delta: 65.9MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-23 22:36:04,829 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 188.7MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:36:04,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 100.4MB in the beginning and 100.3MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.35ms. Allocated memory is still 188.7MB. Free memory was 156.8MB in the beginning and 150.3MB in the end (delta: 6.5MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.62ms. Allocated memory is still 188.7MB. Free memory was 150.3MB in the beginning and 149.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.42ms. Allocated memory is still 188.7MB. Free memory was 149.0MB in the beginning and 148.2MB in the end (delta: 838.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 335.93ms. Allocated memory is still 188.7MB. Free memory was 147.8MB in the beginning and 153.2MB in the end (delta: -5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1764.42ms. Allocated memory is still 188.7MB. Free memory was 152.3MB in the beginning and 86.4MB in the end (delta: 65.9MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 188.7MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((-2 * z) + 4294967293) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 4 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital46 mio100 ax126 hnf100 lsp113 ukn59 mio100 lsp100 div100 bol100 ite100 ukn100 eq130 hnf96 smp100 dnf177 smp96 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 101ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s 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 22:36:04,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:36:05,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4467a2-bb61-48e8-85e3-fe9fcb5c6197/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