./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex02-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu --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 f8f2b0fe07eaaf370138039a17933ca03641a0ac6eda79ccb91fdfa5c5cca256 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:27,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:27,827 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:39:27,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:27,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:27,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:27,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:27,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:27,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:27,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:27,886 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:27,886 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:39:27,887 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:39:27,888 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:39:27,889 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:39:27,889 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:39:27,890 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:39:27,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:27,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:39:27,892 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:27,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:27,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:27,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:27,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:39:27,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:39:27,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:39:27,895 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:39:27,895 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:27,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:27,896 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:39:27,897 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:27,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:27,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:27,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:27,898 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:27,899 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:39:27,899 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_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8f2b0fe07eaaf370138039a17933ca03641a0ac6eda79ccb91fdfa5c5cca256 [2023-11-19 07:39:28,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:28,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:28,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:28,252 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:28,253 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:28,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/loops/trex02-1.c [2023-11-19 07:39:31,327 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:31,660 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:31,661 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/sv-benchmarks/c/loops/trex02-1.c [2023-11-19 07:39:31,669 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/data/ba886a54d/d875771644ab4803ae144e8c46f99fd5/FLAGf224cc144 [2023-11-19 07:39:31,689 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/data/ba886a54d/d875771644ab4803ae144e8c46f99fd5 [2023-11-19 07:39:31,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:31,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:31,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:31,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:31,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:31,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:31,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff27230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31, skipping insertion in model container [2023-11-19 07:39:31,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:31,725 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:31,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:31,918 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:31,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:31,947 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:31,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31 WrapperNode [2023-11-19 07:39:31,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:31,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:31,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:31,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:31,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:31,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:31,985 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 38 [2023-11-19 07:39:31,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:31,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:31,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:31,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:31,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:31,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:31,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:31,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:32,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:32,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:32,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:32,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:32,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:32,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:32,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:32,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:32,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (1/1) ... [2023-11-19 07:39:32,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:32,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:32,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:32,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:39:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:32,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:32,159 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:32,162 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:32,356 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:32,385 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:32,386 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:39:32,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:32 BoogieIcfgContainer [2023-11-19 07:39:32,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:32,390 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:39:32,391 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:39:32,395 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:39:32,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:39:32,396 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:39:31" (1/3) ... [2023-11-19 07:39:32,398 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c0aaf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:39:32, skipping insertion in model container [2023-11-19 07:39:32,398 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:39:32,398 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:31" (2/3) ... [2023-11-19 07:39:32,399 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c0aaf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:39:32, skipping insertion in model container [2023-11-19 07:39:32,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:39:32,399 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:32" (3/3) ... [2023-11-19 07:39:32,401 INFO L332 chiAutomizerObserver]: Analyzing ICFG trex02-1.c [2023-11-19 07:39:32,476 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:39:32,477 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:39:32,477 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:39:32,477 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:39:32,477 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:39:32,478 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:39:32,478 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:39:32,479 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:39:32,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:32,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-19 07:39:32,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:39:32,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:39:32,517 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:39:32,518 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:39:32,518 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:39:32,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:32,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-19 07:39:32,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:39:32,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:39:32,525 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:39:32,525 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:39:32,533 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);~x~0 := 0; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_~c~0#1;havoc main_#t~nondet5#1;~x~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 10#L23-2true [2023-11-19 07:39:32,533 INFO L750 eck$LassoCheckResult]: Loop: 10#L23-2true assume !!(~x~0 > 0);havoc main_#t~nondet6#1;main_~c~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 4#L25true assume 0 != main_~c~0#1 % 256;assume { :begin_inline_foo } true;havoc foo_#t~post4#1;foo_#t~post4#1 := ~x~0;~x~0 := foo_#t~post4#1 - 1;havoc foo_#t~post4#1; 8#L17true havoc foo_#t~post4#1;assume { :end_inline_foo } true; 9#L25-2true havoc main_~c~0#1; 10#L23-2true [2023-11-19 07:39:32,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:32,545 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:39:32,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:32,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828114993] [2023-11-19 07:39:32,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:32,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:32,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:39:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:32,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:39:32,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:32,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1265194, now seen corresponding path program 1 times [2023-11-19 07:39:32,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:32,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945365273] [2023-11-19 07:39:32,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:32,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:32,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:39:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:32,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:39:32,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash 889692396, now seen corresponding path program 1 times [2023-11-19 07:39:32,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:32,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954705581] [2023-11-19 07:39:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:32,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:32,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:39:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:32,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:39:32,972 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:39:32,973 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:39:32,973 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:39:32,974 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:39:32,974 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:39:32,974 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:32,974 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:39:32,974 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:39:32,975 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-1.c_Iteration1_Loop [2023-11-19 07:39:32,975 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:39:32,975 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:39:33,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:39:33,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:39:33,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:39:33,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:39:33,119 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:39:33,120 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:39:33,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:33,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:33,125 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:33,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:39:33,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:39:33,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:39:33,158 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:39:33,158 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6#1=0} Honda state: {ULTIMATE.start_main_#t~nondet6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:39:33,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:33,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:33,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:33,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:33,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:39:33,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:39:33,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:39:33,206 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:39:33,207 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:39:33,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:33,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:33,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:33,224 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:33,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:39:33,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:39:33,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:39:33,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:33,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:33,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:33,280 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:33,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:39:33,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:39:33,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:39:33,337 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:39:33,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:33,342 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:39:33,342 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:39:33,343 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:39:33,343 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:39:33,343 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:39:33,343 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:33,343 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:39:33,343 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:39:33,344 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-1.c_Iteration1_Loop [2023-11-19 07:39:33,344 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:39:33,344 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:39:33,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:39:33,349 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:39:33,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:39:33,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:39:33,412 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:39:33,416 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:39:33,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:33,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:33,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:33,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:39:33,429 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 [2023-11-19 07:39:33,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:39:33,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:39:33,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:39:33,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:39:33,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:39:33,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:39:33,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:39:33,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:39:33,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:33,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:33,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:33,480 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:33,485 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 [2023-11-19 07:39:33,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:39:33,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:39:33,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:39:33,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:39:33,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:39:33,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:39:33,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:39:33,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:39:33,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:39:33,532 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:39:33,532 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:39:33,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:39:33,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:33,562 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:33,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:39:33,569 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:39:33,569 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:39:33,569 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:39:33,570 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2023-11-19 07:39:33,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:33,598 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:39:33,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:33,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:39:33,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:33,655 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:39:33,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:33,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:33,748 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 07:39:33,751 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:33,810 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 42 transitions. Complement of second has 7 states. [2023-11-19 07:39:33,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:39:33,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:33,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2023-11-19 07:39:33,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:39:33,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:39:33,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 07:39:33,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:39:33,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-19 07:39:33,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:39:33,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2023-11-19 07:39:33,837 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:39:33,840 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2023-11-19 07:39:33,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:39:33,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:39:33,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:39:33,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:33,842 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:39:33,842 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:39:33,843 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:39:33,843 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:39:33,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:39:33,843 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:39:33,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:39:33,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:39:33 BoogieIcfgContainer [2023-11-19 07:39:33,851 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:39:33,852 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:39:33,852 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:39:33,852 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:39:33,852 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:32" (3/4) ... [2023-11-19 07:39:33,854 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:39:33,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:39:33,856 INFO L158 Benchmark]: Toolchain (without parser) took 2162.39ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 108.8MB in the beginning and 133.2MB in the end (delta: -24.4MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-11-19 07:39:33,856 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 109.1MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:33,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.90ms. Allocated memory is still 140.5MB. Free memory was 108.4MB in the beginning and 98.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:39:33,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.93ms. Allocated memory is still 140.5MB. Free memory was 98.4MB in the beginning and 97.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:39:33,858 INFO L158 Benchmark]: Boogie Preprocessor took 22.55ms. Allocated memory is still 140.5MB. Free memory was 97.0MB in the beginning and 95.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:33,859 INFO L158 Benchmark]: RCFGBuilder took 379.87ms. Allocated memory is still 140.5MB. Free memory was 95.8MB in the beginning and 87.1MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:39:33,859 INFO L158 Benchmark]: BuchiAutomizer took 1460.61ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 86.7MB in the beginning and 133.2MB in the end (delta: -46.5MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-11-19 07:39:33,860 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 188.7MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:33,863 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 109.1MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.90ms. Allocated memory is still 140.5MB. Free memory was 108.4MB in the beginning and 98.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.93ms. Allocated memory is still 140.5MB. Free memory was 98.4MB in the beginning and 97.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.55ms. Allocated memory is still 140.5MB. Free memory was 97.0MB in the beginning and 95.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.87ms. Allocated memory is still 140.5MB. Free memory was 95.8MB in the beginning and 87.1MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1460.61ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 86.7MB in the beginning and 133.2MB in the end (delta: -46.5MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 188.7MB. Free memory is still 133.2MB. 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 x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:39:33,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:34,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_594cd361-122d-46e7-a40e-26d494d9f24f/bin/uautomizer-verify-uCwYo4JHxu/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