./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU --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 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:10,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:10,762 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:16:10,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:10,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:10,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:10,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:10,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:10,813 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:16:10,813 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:16:10,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:10,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:10,814 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:10,814 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:16:10,816 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:16:10,825 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:16:10,826 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:16:10,831 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:16:10,831 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:16:10,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:10,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:16:10,833 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:16:10,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:10,834 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:16:10,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:10,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:16:10,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:16:10,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:16:10,836 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:10,836 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:16:10,836 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:16:10,837 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:10,837 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:16:10,837 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:10,838 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:10,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:10,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:10,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:10,840 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:16:10,840 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_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b [2024-10-31 22:16:11,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:11,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:11,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:11,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:11,137 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:11,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c Unable to find full path for "g++" [2024-10-31 22:16:13,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:16:13,360 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:16:13,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2024-10-31 22:16:13,372 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/data/06c388445/3fa07a242fec415e971a7496d97655ba/FLAGc12957f72 [2024-10-31 22:16:13,390 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/data/06c388445/3fa07a242fec415e971a7496d97655ba [2024-10-31 22:16:13,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:16:13,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:16:13,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:13,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:16:13,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:16:13,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118c663d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13, skipping insertion in model container [2024-10-31 22:16:13,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:16:13,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:13,680 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:16:13,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:13,751 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:16:13,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13 WrapperNode [2024-10-31 22:16:13,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:13,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:13,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:16:13,753 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:16:13,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,808 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 425 [2024-10-31 22:16:13,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:13,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:16:13,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:16:13,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:16:13,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,842 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]. [2024-10-31 22:16:13,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:16:13,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:16:13,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:16:13,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:16:13,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (1/1) ... [2024-10-31 22:16:13,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:13,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:13,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:13,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:16:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:16:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:16:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:16:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:16:14,027 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:16:14,029 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:16:14,688 INFO L? ?]: Removed 137 outVars from TransFormulas that were not future-live. [2024-10-31 22:16:14,688 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:16:14,714 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:16:14,715 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:16:14,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:14 BoogieIcfgContainer [2024-10-31 22:16:14,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:16:14,717 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:16:14,717 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:16:14,722 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:16:14,723 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:14,723 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:16:13" (1/3) ... [2024-10-31 22:16:14,724 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@270ca8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:16:14, skipping insertion in model container [2024-10-31 22:16:14,725 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:14,725 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:13" (2/3) ... [2024-10-31 22:16:14,725 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@270ca8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:16:14, skipping insertion in model container [2024-10-31 22:16:14,726 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:14,726 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:14" (3/3) ... [2024-10-31 22:16:14,727 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2024-10-31 22:16:14,807 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:16:14,808 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:16:14,808 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:16:14,808 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:16:14,809 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:16:14,809 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:16:14,810 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:16:14,811 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:16:14,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 137 states, 136 states have (on average 1.5808823529411764) internal successors, (215), 136 states have internal predecessors, (215), 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) [2024-10-31 22:16:14,865 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2024-10-31 22:16:14,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:14,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:14,875 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:16:14,876 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:14,876 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:16:14,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 137 states, 136 states have (on average 1.5808823529411764) internal successors, (215), 136 states have internal predecessors, (215), 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) [2024-10-31 22:16:14,889 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2024-10-31 22:16:14,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:14,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:14,894 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:16:14,894 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:14,903 INFO L745 eck$LassoCheckResult]: Stem: 37#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 74#L30true assume !(0 == base2flt_~m#1 % 4294967296); 127#L36true assume !(base2flt_~m#1 % 4294967296 < 16777216); 26#L58-2true [2024-10-31 22:16:14,903 INFO L747 eck$LassoCheckResult]: Loop: 26#L58-2true assume !false; 107#L59true assume base2flt_~m#1 % 4294967296 >= 33554432; 132#L60true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 26#L58-2true [2024-10-31 22:16:14,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:14,911 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2024-10-31 22:16:14,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:14,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574612347] [2024-10-31 22:16:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:14,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:15,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:15,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:15,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574612347] [2024-10-31 22:16:15,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574612347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:15,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:15,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:15,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167173767] [2024-10-31 22:16:15,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:15,284 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:16:15,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:15,285 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2024-10-31 22:16:15,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:15,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117915029] [2024-10-31 22:16:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:15,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:15,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:15,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:15,393 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:15,394 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:15,394 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:15,394 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:15,395 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:16:15,395 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:15,395 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:15,395 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:15,396 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2024-10-31 22:16:15,396 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:15,396 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:15,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:15,435 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:15,590 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:15,591 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:16:15,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:15,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:15,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:15,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:16:15,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:15,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:15,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:16:15,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:15,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:15,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:15,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:16:15,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:16:15,659 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:15,700 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:16:15,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:15,705 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:15,706 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:15,706 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:15,706 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:15,706 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:16:15,707 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:15,707 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:15,707 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:15,707 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2024-10-31 22:16:15,708 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:15,708 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:15,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:15,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:15,857 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:15,863 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:16:15,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:15,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:15,866 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:15,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:16:15,870 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 [2024-10-31 22:16:15,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:15,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:15,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:15,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:15,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:15,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:15,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:15,895 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:15,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:16:15,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:15,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:15,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:15,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:16:15,922 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 [2024-10-31 22:16:15,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:15,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:15,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:15,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:15,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:15,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:15,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:15,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:16:15,949 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:16:15,949 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:16:15,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:15,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:15,960 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:15,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:16:15,963 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:16:15,963 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:16:15,964 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:16:15,964 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-10-31 22:16:16,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:16,014 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:16:16,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:16,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:16,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:16,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:16,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:16,167 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:16:16,170 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 137 states, 136 states have (on average 1.5808823529411764) internal successors, (215), 136 states have internal predecessors, (215), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:16,335 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 137 states, 136 states have (on average 1.5808823529411764) internal successors, (215), 136 states have internal predecessors, (215), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 410 states and 634 transitions. Complement of second has 6 states. [2024-10-31 22:16:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:16:16,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:16,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2024-10-31 22:16:16,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 412 transitions. Stem has 4 letters. Loop has 3 letters. [2024-10-31 22:16:16,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:16,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 412 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-31 22:16:16,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:16,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 412 transitions. Stem has 4 letters. Loop has 6 letters. [2024-10-31 22:16:16,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:16,356 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 410 states and 634 transitions. [2024-10-31 22:16:16,371 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2024-10-31 22:16:16,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 410 states to 85 states and 126 transitions. [2024-10-31 22:16:16,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2024-10-31 22:16:16,385 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2024-10-31 22:16:16,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 126 transitions. [2024-10-31 22:16:16,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:16:16,386 INFO L218 hiAutomatonCegarLoop]: Abstraction has 85 states and 126 transitions. [2024-10-31 22:16:16,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 126 transitions. [2024-10-31 22:16:16,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 67. [2024-10-31 22:16:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.537313432835821) internal successors, (103), 66 states have internal predecessors, (103), 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) [2024-10-31 22:16:16,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 103 transitions. [2024-10-31 22:16:16,427 INFO L240 hiAutomatonCegarLoop]: Abstraction has 67 states and 103 transitions. [2024-10-31 22:16:16,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:16,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:16,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:16,433 INFO L87 Difference]: Start difference. First operand 67 states and 103 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-31 22:16:16,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:16,522 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2024-10-31 22:16:16,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2024-10-31 22:16:16,523 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2024-10-31 22:16:16,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 42 transitions. [2024-10-31 22:16:16,524 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2024-10-31 22:16:16,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2024-10-31 22:16:16,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 42 transitions. [2024-10-31 22:16:16,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:16:16,525 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-10-31 22:16:16,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 42 transitions. [2024-10-31 22:16:16,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-10-31 22:16:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 30 states have internal predecessors, (42), 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) [2024-10-31 22:16:16,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2024-10-31 22:16:16,530 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-10-31 22:16:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:16,535 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-10-31 22:16:16,536 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:16:16,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2024-10-31 22:16:16,536 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2024-10-31 22:16:16,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:16,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:16,537 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:16,537 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:16,538 INFO L745 eck$LassoCheckResult]: Stem: 718#$Ultimate##0 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(24, 2);call #Ultimate.allocInit(12, 3); 702#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 695#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 696#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 705#base2flt_returnLabel#1 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 713#L30-1 assume !(0 == base2flt_~m#1 % 4294967296); 712#L36-1 assume base2flt_~m#1 % 4294967296 < 16777216; 693#L48-3 [2024-10-31 22:16:16,542 INFO L747 eck$LassoCheckResult]: Loop: 693#L48-3 assume !false; 711#L39-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 692#L48-2 assume base2flt_~m#1 % 4294967296 < 16777216; 693#L48-3 [2024-10-31 22:16:16,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:16,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1807397383, now seen corresponding path program 1 times [2024-10-31 22:16:16,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:16,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959863650] [2024-10-31 22:16:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:16,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:16,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:16,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:16,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:16,599 INFO L85 PathProgramCache]: Analyzing trace with hash 136237, now seen corresponding path program 1 times [2024-10-31 22:16:16,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:16,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011284813] [2024-10-31 22:16:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:16,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:16,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:16,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:16,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:16,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1829446553, now seen corresponding path program 1 times [2024-10-31 22:16:16,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:16,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112823338] [2024-10-31 22:16:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:16,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:16,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:16,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:16,732 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:16,733 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:16,733 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:16,733 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:16,733 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:16:16,733 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:16,733 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:16,734 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:16,734 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2024-10-31 22:16:16,734 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:16,734 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:16,735 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:16,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:16,909 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:16,910 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:16:16,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:16,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:16,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:16,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:16:16,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:16,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:16,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:16:16,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:16,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:16,957 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:16,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:16:16,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:16:16,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:17,008 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:16:17,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:16:17,014 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:17,014 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:17,014 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:17,014 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:17,014 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:16:17,015 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:17,015 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:17,015 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:17,015 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2024-10-31 22:16:17,015 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:17,015 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:17,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:17,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:17,242 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:17,242 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:16:17,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:17,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:17,245 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:17,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:16:17,248 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 [2024-10-31 22:16:17,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:17,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:17,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:17,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:17,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:17,267 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:17,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:17,271 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:16:17,274 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:16:17,274 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:16:17,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:17,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:17,278 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:17,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:16:17,281 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:16:17,281 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:16:17,281 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:16:17,281 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-10-31 22:16:17,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:16:17,303 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:16:17,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:17,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:17,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:17,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:17,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:17,497 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:16:17,497 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-31 22:16:17,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:16:17,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:17,624 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 60 states and 79 transitions. Complement of second has 5 states. [2024-10-31 22:16:17,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:16:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-31 22:16:17,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2024-10-31 22:16:17,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-31 22:16:17,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:17,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-31 22:16:17,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:17,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-31 22:16:17,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:17,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 79 transitions. [2024-10-31 22:16:17,661 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2024-10-31 22:16:17,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 53 states and 70 transitions. [2024-10-31 22:16:17,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2024-10-31 22:16:17,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2024-10-31 22:16:17,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 70 transitions. [2024-10-31 22:16:17,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:16:17,668 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 70 transitions. [2024-10-31 22:16:17,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 70 transitions. [2024-10-31 22:16:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 34. [2024-10-31 22:16:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 33 states have internal predecessors, (46), 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) [2024-10-31 22:16:17,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2024-10-31 22:16:17,679 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 46 transitions. [2024-10-31 22:16:17,680 INFO L425 stractBuchiCegarLoop]: Abstraction has 34 states and 46 transitions. [2024-10-31 22:16:17,681 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:16:17,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 46 transitions. [2024-10-31 22:16:17,682 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-10-31 22:16:17,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:17,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:17,684 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:17,685 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:17,685 INFO L745 eck$LassoCheckResult]: Stem: 862#$Ultimate##0 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(24, 2);call #Ultimate.allocInit(12, 3); 844#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 837#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 838#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 849#base2flt_returnLabel#1 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 857#L30-1 assume !(0 == base2flt_~m#1 % 4294967296); 855#L36-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 841#L58-5 [2024-10-31 22:16:17,685 INFO L747 eck$LassoCheckResult]: Loop: 841#L58-5 assume !false; 851#L59-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 840#L60-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 841#L58-5 [2024-10-31 22:16:17,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:17,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1807397409, now seen corresponding path program 1 times [2024-10-31 22:16:17,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:17,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282106612] [2024-10-31 22:16:17,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:17,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:17,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:17,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:17,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:17,723 INFO L85 PathProgramCache]: Analyzing trace with hash 161996, now seen corresponding path program 1 times [2024-10-31 22:16:17,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:17,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630088274] [2024-10-31 22:16:17,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:17,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:17,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:17,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:17,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:17,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1828646228, now seen corresponding path program 1 times [2024-10-31 22:16:17,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:17,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802800633] [2024-10-31 22:16:17,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:17,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:17,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:17,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:17,837 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:17,838 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:17,838 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:17,838 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:17,838 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:16:17,838 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:17,839 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:17,839 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:17,839 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2024-10-31 22:16:17,839 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:17,839 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:17,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:17,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:17,967 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:17,967 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:16:17,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:17,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:17,969 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:17,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:16:17,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:17,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:18,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:16:18,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:18,020 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:18,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:16:18,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:16:18,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:18,068 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:16:18,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:16:18,072 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:18,073 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:18,073 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:18,073 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:18,073 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:16:18,073 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,073 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:18,073 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:18,074 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2024-10-31 22:16:18,074 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:18,075 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:18,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:18,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:18,202 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:18,202 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:16:18,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:18,204 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:18,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:16:18,210 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 [2024-10-31 22:16:18,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:18,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:18,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:18,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:18,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:18,226 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:18,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:18,231 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:16:18,235 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:16:18,235 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:16:18,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:18,238 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:18,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:16:18,241 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:16:18,241 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:16:18,241 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:16:18,241 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-10-31 22:16:18,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:16:18,261 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:16:18,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:18,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:18,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:18,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:18,343 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:16:18,343 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 46 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-31 22:16:18,388 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 46 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 62 states and 82 transitions. Complement of second has 5 states. [2024-10-31 22:16:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:16:18,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-31 22:16:18,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2024-10-31 22:16:18,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-31 22:16:18,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:18,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-31 22:16:18,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:18,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-31 22:16:18,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:18,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 82 transitions. [2024-10-31 22:16:18,392 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2024-10-31 22:16:18,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 55 states and 73 transitions. [2024-10-31 22:16:18,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2024-10-31 22:16:18,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-10-31 22:16:18,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 73 transitions. [2024-10-31 22:16:18,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:16:18,393 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 73 transitions. [2024-10-31 22:16:18,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 73 transitions. [2024-10-31 22:16:18,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 37. [2024-10-31 22:16:18,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 36 states have internal predecessors, (50), 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) [2024-10-31 22:16:18,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2024-10-31 22:16:18,400 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 50 transitions. [2024-10-31 22:16:18,401 INFO L425 stractBuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2024-10-31 22:16:18,401 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:16:18,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 50 transitions. [2024-10-31 22:16:18,401 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 22:16:18,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:18,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:18,402 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:18,402 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:18,403 INFO L745 eck$LassoCheckResult]: Stem: 1010#$Ultimate##0 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(24, 2);call #Ultimate.allocInit(12, 3); 990#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 982#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 983#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 993#base2flt_returnLabel#1 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1005#L30-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 986#L80-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 989#base2flt_returnLabel#2 main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 976#L30-2 assume !(0 == base2flt_~m#1 % 4294967296); 977#L36-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 994#L58-8 [2024-10-31 22:16:18,403 INFO L747 eck$LassoCheckResult]: Loop: 994#L58-8 assume !false; 1007#L59-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1008#L60-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 994#L58-8 [2024-10-31 22:16:18,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1828899400, now seen corresponding path program 1 times [2024-10-31 22:16:18,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:18,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105176736] [2024-10-31 22:16:18,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:18,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:18,415 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:18,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:18,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:18,429 INFO L85 PathProgramCache]: Analyzing trace with hash 249380, now seen corresponding path program 1 times [2024-10-31 22:16:18,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:18,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221699893] [2024-10-31 22:16:18,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:18,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:18,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:18,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:18,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1213311245, now seen corresponding path program 1 times [2024-10-31 22:16:18,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:18,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502293788] [2024-10-31 22:16:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:18,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:18,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:18,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:18,509 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:18,509 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:18,510 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:18,510 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:18,510 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:16:18,510 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,510 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:18,510 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:18,510 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2024-10-31 22:16:18,510 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:18,510 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:18,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:18,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:18,628 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:18,628 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:16:18,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:18,631 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:18,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:16:18,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:18,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:18,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:16:18,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:18,670 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:18,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:16:18,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:16:18,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:18,719 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:16:18,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:16:18,727 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:18,727 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:18,727 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:18,727 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:18,727 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:16:18,727 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,727 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:18,727 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:18,727 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2024-10-31 22:16:18,727 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:18,727 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:18,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:18,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:18,851 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:18,852 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:16:18,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:18,854 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:18,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:16:18,857 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 [2024-10-31 22:16:18,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:18,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:18,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:18,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:18,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:18,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:18,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:18,877 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:16:18,880 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:16:18,881 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:16:18,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:18,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:18,883 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:18,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:16:18,885 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:16:18,885 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:16:18,886 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:16:18,886 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-10-31 22:16:18,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:16:18,908 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:16:18,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:18,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:18,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:19,003 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:16:19,004 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:19,012 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 54 transitions. Complement of second has 4 states. [2024-10-31 22:16:19,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:16:19,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-10-31 22:16:19,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 42 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-31 22:16:19,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:19,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 42 transitions. Stem has 13 letters. Loop has 3 letters. [2024-10-31 22:16:19,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:19,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 42 transitions. Stem has 10 letters. Loop has 6 letters. [2024-10-31 22:16:19,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:19,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 54 transitions. [2024-10-31 22:16:19,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:16:19,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 34 states and 46 transitions. [2024-10-31 22:16:19,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2024-10-31 22:16:19,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-10-31 22:16:19,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 46 transitions. [2024-10-31 22:16:19,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:16:19,019 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 46 transitions. [2024-10-31 22:16:19,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 46 transitions. [2024-10-31 22:16:19,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-10-31 22:16:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 33 states have internal predecessors, (46), 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) [2024-10-31 22:16:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2024-10-31 22:16:19,021 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 46 transitions. [2024-10-31 22:16:19,021 INFO L425 stractBuchiCegarLoop]: Abstraction has 34 states and 46 transitions. [2024-10-31 22:16:19,021 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:16:19,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 46 transitions. [2024-10-31 22:16:19,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:16:19,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:19,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:19,025 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:19,025 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:19,025 INFO L745 eck$LassoCheckResult]: Stem: 1141#$Ultimate##0 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(24, 2);call #Ultimate.allocInit(12, 3); 1124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1116#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1117#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 1127#base2flt_returnLabel#1 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1138#L30-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1120#L80-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1123#base2flt_returnLabel#2 main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1110#L30-2 assume !(0 == base2flt_~m#1 % 4294967296); 1111#L36-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1128#L48-5 [2024-10-31 22:16:19,026 INFO L747 eck$LassoCheckResult]: Loop: 1128#L48-5 assume !false; 1140#L39-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1139#L48-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1128#L48-5 [2024-10-31 22:16:19,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1828899426, now seen corresponding path program 1 times [2024-10-31 22:16:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:19,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134924469] [2024-10-31 22:16:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:19,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:19,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:19,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:19,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:19,067 INFO L85 PathProgramCache]: Analyzing trace with hash 223621, now seen corresponding path program 1 times [2024-10-31 22:16:19,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:19,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043791963] [2024-10-31 22:16:19,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:19,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:19,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:19,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:19,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:19,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1212510920, now seen corresponding path program 1 times [2024-10-31 22:16:19,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:19,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743564114] [2024-10-31 22:16:19,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:19,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:19,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:19,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:19,156 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:19,157 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:19,157 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:19,157 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:19,157 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:16:19,157 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:19,157 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:19,157 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:19,157 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2024-10-31 22:16:19,158 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:19,158 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:19,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:19,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:19,290 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:19,291 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:16:19,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:19,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:19,294 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:19,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:16:19,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:19,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:19,331 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:16:19,331 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:16:19,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:16:19,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:19,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:19,339 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:19,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:16:19,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:19,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:19,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:19,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:19,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:19,373 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:19,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:16:19,375 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:16:19,375 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:19,417 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:16:19,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:16:19,422 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:19,422 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:19,422 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:19,422 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:19,422 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:16:19,422 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:19,422 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:19,422 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:19,422 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2024-10-31 22:16:19,422 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:19,422 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:19,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:19,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:19,556 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:19,556 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:16:19,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:19,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:19,558 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:19,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:16:19,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:19,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:19,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:19,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:19,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:19,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:19,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:19,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:19,588 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:19,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-31 22:16:19,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:19,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:19,610 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:19,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:16:19,612 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 [2024-10-31 22:16:19,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:19,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:19,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:19,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:19,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:19,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:19,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:19,630 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:16:19,633 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:16:19,633 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:16:19,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:19,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:19,636 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:19,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:16:19,638 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:16:19,638 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:16:19,638 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:16:19,638 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-10-31 22:16:19,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-31 22:16:19,657 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:16:19,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:19,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:19,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:19,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:19,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:19,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:19,737 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:16:19,737 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 46 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:19,743 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 46 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 50 transitions. Complement of second has 4 states. [2024-10-31 22:16:19,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:16:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:19,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2024-10-31 22:16:19,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 39 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-31 22:16:19,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:19,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 39 transitions. Stem has 13 letters. Loop has 3 letters. [2024-10-31 22:16:19,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:19,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 39 transitions. Stem has 10 letters. Loop has 6 letters. [2024-10-31 22:16:19,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:19,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 50 transitions. [2024-10-31 22:16:19,746 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:16:19,746 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2024-10-31 22:16:19,746 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:16:19,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:16:19,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:16:19,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:16:19,747 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:16:19,747 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:16:19,747 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:16:19,747 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:16:19,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:16:19,748 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:16:19,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:16:19,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:16:19 BoogieIcfgContainer [2024-10-31 22:16:19,760 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:16:19,760 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:16:19,761 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:16:19,762 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:16:19,762 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:14" (3/4) ... [2024-10-31 22:16:19,765 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:16:19,766 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:16:19,768 INFO L158 Benchmark]: Toolchain (without parser) took 6373.68ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 140.9MB in the beginning and 65.1MB in the end (delta: 75.8MB). Peak memory consumption was 111.4MB. Max. memory is 16.1GB. [2024-10-31 22:16:19,768 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 176.2MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:16:19,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.08ms. Allocated memory is still 176.2MB. Free memory was 140.9MB in the beginning and 125.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:16:19,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.52ms. Allocated memory is still 176.2MB. Free memory was 125.5MB in the beginning and 122.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:16:19,769 INFO L158 Benchmark]: Boogie Preprocessor took 56.44ms. Allocated memory is still 176.2MB. Free memory was 122.8MB in the beginning and 119.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:16:19,769 INFO L158 Benchmark]: RCFGBuilder took 848.59ms. Allocated memory is still 176.2MB. Free memory was 119.2MB in the beginning and 86.5MB in the end (delta: 32.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-31 22:16:19,770 INFO L158 Benchmark]: BuchiAutomizer took 5042.90ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 86.5MB in the beginning and 65.1MB in the end (delta: 21.4MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2024-10-31 22:16:19,770 INFO L158 Benchmark]: Witness Printer took 6.72ms. Allocated memory is still 211.8MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:16:19,772 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 176.2MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.08ms. Allocated memory is still 176.2MB. Free memory was 140.9MB in the beginning and 125.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.52ms. Allocated memory is still 176.2MB. Free memory was 125.5MB in the beginning and 122.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.44ms. Allocated memory is still 176.2MB. Free memory was 122.8MB in the beginning and 119.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 848.59ms. Allocated memory is still 176.2MB. Free memory was 119.2MB in the beginning and 86.5MB in the end (delta: 32.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5042.90ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 86.5MB in the beginning and 65.1MB in the end (delta: 21.4MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Witness Printer took 6.72ms. Allocated memory is still 211.8MB. Free memory is still 65.1MB. 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 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 4 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 55 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 367 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 362 mSDsluCounter, 444 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 402 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp61 ukn100 mio100 lsp100 div611 bol100 ite100 ukn100 eq131 hnf96 smp40 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:16:19,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:20,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:20,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:16:20,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbc3a37-ca25-4164-bb9c-358f591b807e/bin/uautomizer-verify-4GaUIPS5ZU/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