./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme --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 32bit --witnessprinter.graph.data.programhash eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:43:43,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:43,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 11:43:43,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:43,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:43,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:43,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:43,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:43,499 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:43:43,504 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:43:43,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:43,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:43,506 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:43,508 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 11:43:43,509 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 11:43:43,509 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 11:43:43,510 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 11:43:43,510 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 11:43:43,510 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 11:43:43,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:43,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 11:43:43,512 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:43:43,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:43,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:43:43,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:43,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 11:43:43,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 11:43:43,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 11:43:43,515 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:43:43,515 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:43:43,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:43,517 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 11:43:43,517 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:43,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:43,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:43,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:43,518 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:43,519 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 11:43:43,519 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_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 [2023-11-26 11:43:43,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:43,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:43,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:43,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:43,828 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:43,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/recursive/EvenOdd03.c [2023-11-26 11:43:46,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:43:47,162 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:43:47,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/sv-benchmarks/c/recursive/EvenOdd03.c [2023-11-26 11:43:47,171 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/data/bb8e03c4b/1d8b434c606e4d599f003ba1f07e6039/FLAG97400cc30 [2023-11-26 11:43:47,187 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/data/bb8e03c4b/1d8b434c606e4d599f003ba1f07e6039 [2023-11-26 11:43:47,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:43:47,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:43:47,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:47,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:43:47,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:43:47,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48aaac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47, skipping insertion in model container [2023-11-26 11:43:47,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,223 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:43:47,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:47,451 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:43:47,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:47,492 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:43:47,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47 WrapperNode [2023-11-26 11:43:47,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:47,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:47,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:43:47,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:43:47,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,531 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-11-26 11:43:47,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:47,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:43:47,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:43:47,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:43:47,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,556 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,575 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:43:47,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:43:47,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:43:47,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:43:47,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:43:47,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:47,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:47,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:47,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 11:43:47,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:43:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2023-11-26 11:43:47,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2023-11-26 11:43:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:43:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2023-11-26 11:43:47,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2023-11-26 11:43:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:43:47,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:43:47,769 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:43:47,772 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:43:47,962 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:43:47,975 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:43:47,976 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:43:47,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:47 BoogieIcfgContainer [2023-11-26 11:43:47,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:43:47,979 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 11:43:47,981 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 11:43:47,985 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 11:43:47,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:43:47,987 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 11:43:47" (1/3) ... [2023-11-26 11:43:47,989 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bc380af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:43:47, skipping insertion in model container [2023-11-26 11:43:47,989 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:43:47,990 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (2/3) ... [2023-11-26 11:43:47,992 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bc380af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:43:47, skipping insertion in model container [2023-11-26 11:43:47,992 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:43:47,993 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:47" (3/3) ... [2023-11-26 11:43:47,994 INFO L332 chiAutomizerObserver]: Analyzing ICFG EvenOdd03.c [2023-11-26 11:43:48,065 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 11:43:48,065 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 11:43:48,065 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 11:43:48,066 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 11:43:48,066 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 11:43:48,066 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 11:43:48,066 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 11:43:48,067 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 11:43:48,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:43:48,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 11:43:48,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:43:48,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:43:48,104 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 11:43:48,105 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:48,105 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 11:43:48,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:43:48,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 11:43:48,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:43:48,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:43:48,110 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 11:43:48,110 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:48,118 INFO L748 eck$LassoCheckResult]: Stem: 23#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~n~0#1, main_~result~0#1, main_~mod~0#1;havoc main_#t~nondet6#1;main_~n~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 22#L41true assume !(main_~n~0#1 < 0); 3#L44true call main_#t~ret7#1 := isEven(main_~n~0#1);< 8#$Ultimate##0true [2023-11-26 11:43:48,119 INFO L750 eck$LassoCheckResult]: Loop: 8#$Ultimate##0true ~n := #in~n; 17#L29true assume !(0 == ~n); 4#L31true assume !(1 == ~n); 7#L34true call #t~ret5 := isOdd(~n - 1);< 14#$Ultimate##0true ~n := #in~n; 18#L19true assume !(0 == ~n); 16#L21true assume !(1 == ~n); 20#L24true call #t~ret4 := isEven(~n - 1);< 8#$Ultimate##0true [2023-11-26 11:43:48,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:48,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1664502, now seen corresponding path program 1 times [2023-11-26 11:43:48,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:48,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808026308] [2023-11-26 11:43:48,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:48,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:48,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:43:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:48,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:43:48,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:48,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2014448971, now seen corresponding path program 1 times [2023-11-26 11:43:48,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:48,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918153033] [2023-11-26 11:43:48,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:48,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:48,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:43:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:48,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:43:48,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:48,338 INFO L85 PathProgramCache]: Analyzing trace with hash 880062016, now seen corresponding path program 1 times [2023-11-26 11:43:48,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:48,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860942801] [2023-11-26 11:43:48,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:48,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:48,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:43:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:48,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:43:48,722 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:43:48,722 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:43:48,723 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:43:48,723 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:43:48,723 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:43:48,723 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:48,723 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:43:48,724 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:43:48,724 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd03.c_Iteration1_Loop [2023-11-26 11:43:48,724 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:43:48,724 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:43:48,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:48,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:48,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:48,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:48,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:48,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:48,998 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:43:48,998 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:43:49,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 11:43:49,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:43:49,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:43:49,047 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:43:49,048 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#in~n=0} Honda state: {isOdd_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:43:49,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:49,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,058 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:43:49,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:43:49,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 11:43:49,087 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:43:49,088 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#t~ret5=0} Honda state: {isEven_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:43:49,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:49,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,093 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 11:43:49,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:43:49,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:43:49,109 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:43:49,109 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#res=0} Honda state: {isOdd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:43:49,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:49,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 11:43:49,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:43:49,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:43:49,129 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:43:49,129 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#res=0} Honda state: {isEven_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:43:49,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:49,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,140 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 11:43:49,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:43:49,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:43:49,156 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:43:49,156 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#t~ret4=0} Honda state: {isOdd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:43:49,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-26 11:43:49,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,165 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 11:43:49,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:43:49,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:43:49,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:49,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,199 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 11:43:49,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:43:49,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:43:49,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:43:49,265 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#in~n=-2} Honda state: {isEven_#in~n=-2} Generalized eigenvectors: [{isEven_#in~n=-1}, {isEven_#in~n=-1}, {isEven_#in~n=0}] Lambdas: [0, 1, 12] Nus: [1, 0] [2023-11-26 11:43:49,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:49,546 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:43:49,546 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:43:49,546 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:43:49,551 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:43:49,551 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:43:49,551 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,552 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:43:49,552 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:43:49,552 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd03.c_Iteration1_Lasso [2023-11-26 11:43:49,552 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:43:49,552 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:43:49,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,675 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:43:49,937 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:43:49,942 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:43:49,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,945 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,952 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 [2023-11-26 11:43:49,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 11:43:49,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:43:49,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:43:49,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:43:49,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:43:49,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:43:49,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:43:49,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:43:49,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:43:49,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:49,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:49,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,992 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:50,005 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 [2023-11-26 11:43:50,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:43:50,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:43:50,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:43:50,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:43:50,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:43:50,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:43:50,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:43:50,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-26 11:43:50,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:43:50,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:50,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:50,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:50,042 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:50,051 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 [2023-11-26 11:43:50,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 11:43:50,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:43:50,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:43:50,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:43:50,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:43:50,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:43:50,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:43:50,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:43:50,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:43:50,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:50,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:50,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:50,081 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:50,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 11:43:50,088 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 [2023-11-26 11:43:50,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:43:50,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:43:50,101 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-26 11:43:50,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:43:50,125 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-26 11:43:50,128 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-26 11:43:50,167 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:43:50,217 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-11-26 11:43:50,217 INFO L444 ModelExtractionUtils]: 3 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-26 11:43:50,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:43:50,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:50,257 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:50,259 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:43:50,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 11:43:50,296 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-11-26 11:43:50,296 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:43:50,297 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(isEven_#in~n) = 1*isEven_#in~n Supporting invariants [1*isEven_#in~n >= 0] [2023-11-26 11:43:50,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:50,314 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-26 11:43:50,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:50,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:43:50,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:50,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 11:43:50,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:50,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:50,767 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2023-11-26 11:43:50,769 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:51,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 78 states and 91 transitions. Complement of second has 25 states. [2023-11-26 11:43:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-26 11:43:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:51,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 27 transitions. [2023-11-26 11:43:51,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 4 letters. Loop has 8 letters. [2023-11-26 11:43:51,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:43:51,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-26 11:43:51,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:43:51,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 4 letters. Loop has 16 letters. [2023-11-26 11:43:51,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:43:51,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 91 transitions. [2023-11-26 11:43:51,190 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:43:51,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 0 states and 0 transitions. [2023-11-26 11:43:51,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 11:43:51,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 11:43:51,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 11:43:51,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:51,195 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:43:51,195 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:43:51,195 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:43:51,195 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 11:43:51,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:43:51,196 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:43:51,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 11:43:51,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 11:43:51 BoogieIcfgContainer [2023-11-26 11:43:51,206 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 11:43:51,206 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:43:51,206 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:43:51,207 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:43:51,207 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:47" (3/4) ... [2023-11-26 11:43:51,209 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:43:51,210 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:43:51,216 INFO L158 Benchmark]: Toolchain (without parser) took 4019.73ms. Allocated memory is still 169.9MB. Free memory was 133.8MB in the beginning and 113.9MB in the end (delta: 19.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-11-26 11:43:51,217 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:43:51,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.25ms. Allocated memory is still 169.9MB. Free memory was 133.8MB in the beginning and 123.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:43:51,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.49ms. Allocated memory is still 169.9MB. Free memory was 123.3MB in the beginning and 122.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:43:51,219 INFO L158 Benchmark]: Boogie Preprocessor took 64.14ms. Allocated memory is still 169.9MB. Free memory was 122.2MB in the beginning and 120.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:43:51,220 INFO L158 Benchmark]: RCFGBuilder took 380.28ms. Allocated memory is still 169.9MB. Free memory was 120.1MB in the beginning and 110.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:43:51,220 INFO L158 Benchmark]: BuchiAutomizer took 3226.54ms. Allocated memory is still 169.9MB. Free memory was 110.2MB in the beginning and 114.9MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:43:51,223 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 169.9MB. Free memory was 114.9MB in the beginning and 113.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:43:51,232 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 is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.25ms. Allocated memory is still 169.9MB. Free memory was 133.8MB in the beginning and 123.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.49ms. Allocated memory is still 169.9MB. Free memory was 123.3MB in the beginning and 122.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.14ms. Allocated memory is still 169.9MB. Free memory was 122.2MB in the beginning and 120.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.28ms. Allocated memory is still 169.9MB. Free memory was 120.1MB in the beginning and 110.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3226.54ms. Allocated memory is still 169.9MB. Free memory was 110.2MB in the beginning and 114.9MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 169.9MB. Free memory was 114.9MB in the beginning and 113.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 \old(n) and consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. 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, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 14 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital46 mio100 ax100 hnf100 lsp64 ukn97 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf97 smp100 dnf440 smp19 tf103 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 218ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 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! [2023-11-26 11:43:51,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84b085b-b02f-45cc-a0fc-9048969cbf9e/bin/uautomizer-verify-VRDe98Ueme/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