./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/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_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/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_a3c6c5a9-8b81-4476-9178-87c7df2d9620/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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:18:40,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:18:40,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:18:40,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:18:40,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:18:40,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:18:40,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:18:40,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:18:40,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:18:40,248 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:18:40,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:18:40,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:18:40,249 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:18:40,250 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:18:40,250 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:18:40,250 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:18:40,251 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:18:40,251 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:18:40,251 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:18:40,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:18:40,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:18:40,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:18:40,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:18:40,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:18:40,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:18:40,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:18:40,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:18:40,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:18:40,255 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:18:40,256 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:18:40,256 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:18:40,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:18:40,256 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:18:40,257 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:18:40,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:18:40,257 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:18:40,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:18:40,258 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:18:40,259 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:18:40,259 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_a3c6c5a9-8b81-4476-9178-87c7df2d9620/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2024-10-31 22:18:40,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:18:40,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:18:40,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:18:40,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:18:40,529 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:18:40,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c Unable to find full path for "g++" [2024-10-31 22:18:42,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:18:42,824 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:18:42,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2024-10-31 22:18:42,834 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/data/964cdf23e/97bdde0ddf9d4c8c95da0a4c58dfec18/FLAG4e1682f8d [2024-10-31 22:18:42,849 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/data/964cdf23e/97bdde0ddf9d4c8c95da0a4c58dfec18 [2024-10-31 22:18:42,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:18:42,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:18:42,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:42,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:18:42,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:18:42,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:42" (1/1) ... [2024-10-31 22:18:42,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d269eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:42, skipping insertion in model container [2024-10-31 22:18:42,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:42" (1/1) ... [2024-10-31 22:18:42,892 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:18:43,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:43,193 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:18:43,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:43,256 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:18:43,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43 WrapperNode [2024-10-31 22:18:43,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:43,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:43,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:18:43,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:18:43,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,321 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 11, calls inlined = 9, statements flattened = 376 [2024-10-31 22:18:43,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:43,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:18:43,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:18:43,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:18:43,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,344 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,370 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 22:18:43,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:18:43,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:18:43,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:18:43,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:18:43,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (1/1) ... [2024-10-31 22:18:43,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:43,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:43,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:43,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:18:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:18:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:18:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:18:43,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:18:43,585 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:18:43,588 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:18:44,348 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2024-10-31 22:18:44,348 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:18:44,373 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:18:44,376 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-31 22:18:44,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:44 BoogieIcfgContainer [2024-10-31 22:18:44,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:18:44,378 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:18:44,380 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:18:44,385 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:18:44,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:18:44,386 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:18:42" (1/3) ... [2024-10-31 22:18:44,387 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@412315a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:18:44, skipping insertion in model container [2024-10-31 22:18:44,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:18:44,388 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:43" (2/3) ... [2024-10-31 22:18:44,388 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@412315a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:18:44, skipping insertion in model container [2024-10-31 22:18:44,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:18:44,388 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:44" (3/3) ... [2024-10-31 22:18:44,392 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2024-10-31 22:18:44,467 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:18:44,468 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:18:44,468 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:18:44,468 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:18:44,469 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:18:44,469 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:18:44,470 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:18:44,470 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:18:44,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.6637931034482758) internal successors, (193), 116 states have internal predecessors, (193), 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 22:18:44,532 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2024-10-31 22:18:44,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:18:44,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:18:44,538 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:18:44,539 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:18:44,539 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:18:44,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.6637931034482758) internal successors, (193), 116 states have internal predecessors, (193), 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 22:18:44,546 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2024-10-31 22:18:44,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:18:44,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:18:44,547 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:18:44,547 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:18:44,553 INFO L745 eck$LassoCheckResult]: Stem: 30#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 40#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 77#L29true assume !(0 == base2flt_~m#1 % 4294967296); 98#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 56#L57-2true [2024-10-31 22:18:44,554 INFO L747 eck$LassoCheckResult]: Loop: 56#L57-2true assume !false; 39#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 88#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 56#L57-2true [2024-10-31 22:18:44,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:44,571 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2024-10-31 22:18:44,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:44,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104300653] [2024-10-31 22:18:44,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:44,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:44,884 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 22:18:44,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:44,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104300653] [2024-10-31 22:18:44,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104300653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:44,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:44,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:44,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519514693] [2024-10-31 22:18:44,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:44,894 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:18:44,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:44,895 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2024-10-31 22:18:44,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:44,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609074197] [2024-10-31 22:18:44,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:44,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:44,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:44,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:45,033 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:45,034 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:45,034 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:45,034 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:45,034 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:18:45,034 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:45,034 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:45,035 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:45,035 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2024-10-31 22:18:45,035 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:45,035 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:45,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:45,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:45,208 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:45,208 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:18:45,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:45,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:45,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:45,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:18:45,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:18:45,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:45,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:18:45,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:45,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:45,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:45,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:18:45,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:18:45,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:45,301 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:18:45,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:18:45,305 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:45,305 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:45,305 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:45,305 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:45,305 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:18:45,306 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:45,306 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:45,306 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:45,306 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2024-10-31 22:18:45,306 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:45,306 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:45,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:45,322 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:45,464 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:45,470 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:18:45,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:45,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:45,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:45,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:18:45,478 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 22:18:45,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:45,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:45,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:45,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:45,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:45,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:45,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:45,499 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:18:45,505 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:18:45,505 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:18:45,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:45,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:45,510 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:45,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:18:45,513 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:18:45,513 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:18:45,514 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:18:45,514 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 22:18:45,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:18:45,537 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:18:45,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:45,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:18:45,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:45,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:18:45,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:45,640 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 22:18:45,683 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 22:18:45,688 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 117 states, 116 states have (on average 1.6637931034482758) internal successors, (193), 116 states have internal predecessors, (193), 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 22:18:45,836 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 117 states, 116 states have (on average 1.6637931034482758) internal successors, (193), 116 states have internal predecessors, (193), 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 347 states and 564 transitions. Complement of second has 6 states. [2024-10-31 22:18:45,840 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 22:18:45,846 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 22:18:45,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2024-10-31 22:18:45,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 372 transitions. Stem has 4 letters. Loop has 3 letters. [2024-10-31 22:18:45,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:45,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 372 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-31 22:18:45,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:45,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 372 transitions. Stem has 4 letters. Loop has 6 letters. [2024-10-31 22:18:45,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:45,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 347 states and 564 transitions. [2024-10-31 22:18:45,870 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2024-10-31 22:18:45,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 347 states to 121 states and 186 transitions. [2024-10-31 22:18:45,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2024-10-31 22:18:45,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2024-10-31 22:18:45,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 186 transitions. [2024-10-31 22:18:45,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:45,883 INFO L218 hiAutomatonCegarLoop]: Abstraction has 121 states and 186 transitions. [2024-10-31 22:18:45,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 186 transitions. [2024-10-31 22:18:45,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 103. [2024-10-31 22:18:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 103 states have (on average 1.5825242718446602) internal successors, (163), 102 states have internal predecessors, (163), 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 22:18:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 163 transitions. [2024-10-31 22:18:45,923 INFO L240 hiAutomatonCegarLoop]: Abstraction has 103 states and 163 transitions. [2024-10-31 22:18:45,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:45,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:45,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:45,929 INFO L87 Difference]: Start difference. First operand 103 states and 163 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 22:18:46,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:46,069 INFO L93 Difference]: Finished difference Result 49 states and 70 transitions. [2024-10-31 22:18:46,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 70 transitions. [2024-10-31 22:18:46,071 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2024-10-31 22:18:46,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 70 transitions. [2024-10-31 22:18:46,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-10-31 22:18:46,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-10-31 22:18:46,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 70 transitions. [2024-10-31 22:18:46,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:18:46,076 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-10-31 22:18:46,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 70 transitions. [2024-10-31 22:18:46,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-10-31 22:18:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 48 states have internal predecessors, (70), 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 22:18:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2024-10-31 22:18:46,084 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-10-31 22:18:46,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:46,085 INFO L425 stractBuchiCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-10-31 22:18:46,085 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:18:46,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 70 transitions. [2024-10-31 22:18:46,086 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2024-10-31 22:18:46,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:18:46,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:18:46,087 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:46,087 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:18:46,088 INFO L745 eck$LassoCheckResult]: Stem: 696#$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(22, 2);call #Ultimate.allocInit(12, 3); 697#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 692#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 693#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 688#base2flt_returnLabel#1 main_#t~ret19#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~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 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; 689#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 702#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 695#L47-3 [2024-10-31 22:18:46,088 INFO L747 eck$LassoCheckResult]: Loop: 695#L47-3 assume !false; 690#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 691#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 695#L47-3 [2024-10-31 22:18:46,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:46,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1807397383, now seen corresponding path program 1 times [2024-10-31 22:18:46,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:46,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45049086] [2024-10-31 22:18:46,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:46,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:46,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:46,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:46,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash 136237, now seen corresponding path program 1 times [2024-10-31 22:18:46,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:46,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947813904] [2024-10-31 22:18:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:46,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:46,149 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:46,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:46,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:46,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1829446553, now seen corresponding path program 1 times [2024-10-31 22:18:46,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:46,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978648153] [2024-10-31 22:18:46,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:46,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:46,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:46,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:18:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:46,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:46,357 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:46,358 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:46,358 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:46,358 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:46,358 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:18:46,358 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:46,358 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:46,359 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:46,359 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2024-10-31 22:18:46,359 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:46,359 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:46,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:46,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:46,530 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:46,530 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:18:46,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:46,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:46,534 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:46,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:18:46,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:18:46,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:46,579 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:18:46,579 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 22:18:46,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:46,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:46,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:46,589 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:46,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:18:46,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:18:46,592 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:46,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:18:46,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:46,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:46,647 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:46,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:18:46,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:18:46,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:46,696 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:18:46,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:18:46,701 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:46,702 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:46,702 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:46,702 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:46,702 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:18:46,702 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:46,702 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:46,703 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:46,703 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2024-10-31 22:18:46,703 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:46,703 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:46,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:46,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:46,885 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:46,889 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:18:46,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:46,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:46,893 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:46,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:18:46,897 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 22:18:46,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:46,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:46,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:46,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:46,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:46,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:46,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:46,919 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:18:46,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:18:46,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:46,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:46,944 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:46,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:18:46,949 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 22:18:46,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:46,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:46,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:46,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:46,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:46,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:46,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:46,969 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:18:46,972 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:18:46,972 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:18:46,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:46,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:46,974 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:46,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:18:46,976 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:18:46,977 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:18:46,977 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:18:46,977 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 22:18:46,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:18:46,996 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:18:47,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:47,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:18:47,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:47,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:18:47,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:47,117 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 22:18:47,118 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 22:18:47,118 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 70 transitions. cyclomatic complexity: 27 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 22:18:47,161 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 70 transitions. cyclomatic complexity: 27. 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 96 states and 135 transitions. Complement of second has 5 states. [2024-10-31 22:18:47,163 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 22:18:47,164 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 22:18:47,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-10-31 22:18:47,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-31 22:18:47,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:47,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-31 22:18:47,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:47,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-31 22:18:47,167 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:47,168 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 135 transitions. [2024-10-31 22:18:47,169 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2024-10-31 22:18:47,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 89 states and 126 transitions. [2024-10-31 22:18:47,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 83 [2024-10-31 22:18:47,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2024-10-31 22:18:47,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 126 transitions. [2024-10-31 22:18:47,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:47,174 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-10-31 22:18:47,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 126 transitions. [2024-10-31 22:18:47,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 52. [2024-10-31 22:18:47,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 51 states have internal predecessors, (74), 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 22:18:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2024-10-31 22:18:47,177 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 74 transitions. [2024-10-31 22:18:47,178 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2024-10-31 22:18:47,182 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:18:47,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 74 transitions. [2024-10-31 22:18:47,182 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2024-10-31 22:18:47,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:18:47,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:18:47,183 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:47,183 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:18:47,183 INFO L745 eck$LassoCheckResult]: Stem: 893#$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(22, 2);call #Ultimate.allocInit(12, 3); 894#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 888#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 889#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 883#base2flt_returnLabel#1 main_#t~ret19#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~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 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; 884#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 899#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 871#L57-5 [2024-10-31 22:18:47,183 INFO L747 eck$LassoCheckResult]: Loop: 871#L57-5 assume !false; 867#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 868#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 871#L57-5 [2024-10-31 22:18:47,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1807397409, now seen corresponding path program 1 times [2024-10-31 22:18:47,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:47,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143695678] [2024-10-31 22:18:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:47,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:47,293 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 22:18:47,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:47,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143695678] [2024-10-31 22:18:47,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143695678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:47,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:47,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:47,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524218171] [2024-10-31 22:18:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:47,297 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:18:47,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:47,298 INFO L85 PathProgramCache]: Analyzing trace with hash 161996, now seen corresponding path program 1 times [2024-10-31 22:18:47,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:47,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187194252] [2024-10-31 22:18:47,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:47,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:47,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:47,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:47,365 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:47,366 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:47,366 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:47,366 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:47,366 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:18:47,366 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:47,366 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:47,366 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:47,367 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2024-10-31 22:18:47,367 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:47,367 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:47,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:47,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:47,509 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:47,510 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:18:47,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:47,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:47,512 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:47,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:18:47,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:18:47,518 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:47,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:18:47,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:47,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:47,560 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:47,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:18:47,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:18:47,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:47,606 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:18:47,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:18:47,612 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:47,612 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:47,612 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:47,612 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:47,612 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:18:47,612 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:47,612 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:47,612 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:47,612 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2024-10-31 22:18:47,612 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:47,612 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:47,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:47,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:47,739 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:47,739 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:18:47,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:47,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:47,742 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:47,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:18:47,745 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 22:18:47,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:47,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:47,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:47,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:47,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:47,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:47,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:47,768 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:18:47,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:18:47,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:47,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:47,792 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:47,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:18:47,795 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 22:18:47,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:47,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:47,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:47,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:47,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:47,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:47,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:47,817 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:18:47,820 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:18:47,820 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:18:47,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:47,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:47,824 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:47,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:18:47,828 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:18:47,828 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:18:47,828 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:18:47,828 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 22:18:47,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:47,849 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:18:47,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:47,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:18:47,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:47,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:18:47,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:47,907 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 22:18:47,908 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 22:18:47,908 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 74 transitions. cyclomatic complexity: 28 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 22:18:47,942 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 74 transitions. cyclomatic complexity: 28. 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 98 states and 138 transitions. Complement of second has 5 states. [2024-10-31 22:18:47,942 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 22:18:47,943 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 22:18:47,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-10-31 22:18:47,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-31 22:18:47,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:47,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-31 22:18:47,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:47,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-31 22:18:47,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:47,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 138 transitions. [2024-10-31 22:18:47,945 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2024-10-31 22:18:47,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 91 states and 129 transitions. [2024-10-31 22:18:47,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2024-10-31 22:18:47,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2024-10-31 22:18:47,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 129 transitions. [2024-10-31 22:18:47,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:47,948 INFO L218 hiAutomatonCegarLoop]: Abstraction has 91 states and 129 transitions. [2024-10-31 22:18:47,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 129 transitions. [2024-10-31 22:18:47,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 55. [2024-10-31 22:18:47,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 54 states have internal predecessors, (78), 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 22:18:47,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2024-10-31 22:18:47,951 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 78 transitions. [2024-10-31 22:18:47,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:47,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:47,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:47,952 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand has 3 states, 2 states have (on average 3.5) 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 22:18:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:48,044 INFO L93 Difference]: Finished difference Result 53 states and 71 transitions. [2024-10-31 22:18:48,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 71 transitions. [2024-10-31 22:18:48,045 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2024-10-31 22:18:48,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 71 transitions. [2024-10-31 22:18:48,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-10-31 22:18:48,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-10-31 22:18:48,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 71 transitions. [2024-10-31 22:18:48,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:48,047 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 71 transitions. [2024-10-31 22:18:48,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 71 transitions. [2024-10-31 22:18:48,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-10-31 22:18:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 48 states have internal predecessors, (67), 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 22:18:48,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 67 transitions. [2024-10-31 22:18:48,050 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2024-10-31 22:18:48,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:48,052 INFO L425 stractBuchiCegarLoop]: Abstraction has 49 states and 67 transitions. [2024-10-31 22:18:48,052 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:18:48,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 67 transitions. [2024-10-31 22:18:48,053 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2024-10-31 22:18:48,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:18:48,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:18:48,053 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:48,053 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:18:48,054 INFO L745 eck$LassoCheckResult]: Stem: 1208#$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(22, 2);call #Ultimate.allocInit(12, 3); 1175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 1176#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1205#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1199#base2flt_returnLabel#1 main_#t~ret19#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~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 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; 1200#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1180#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1181#L47-3 assume !false; 1203#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1191#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1173#base2flt_returnLabel#2 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_~one~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; 1174#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1196#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1197#L57-8 [2024-10-31 22:18:48,054 INFO L747 eck$LassoCheckResult]: Loop: 1197#L57-8 assume !false; 1189#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1190#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 1197#L57-8 [2024-10-31 22:18:48,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:48,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2092843178, now seen corresponding path program 1 times [2024-10-31 22:18:48,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:48,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156187187] [2024-10-31 22:18:48,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:48,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:48,107 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 22:18:48,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:48,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156187187] [2024-10-31 22:18:48,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156187187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:48,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:48,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:48,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500353999] [2024-10-31 22:18:48,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:48,108 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:18:48,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:48,109 INFO L85 PathProgramCache]: Analyzing trace with hash 249380, now seen corresponding path program 1 times [2024-10-31 22:18:48,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:48,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368755174] [2024-10-31 22:18:48,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:48,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:48,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:48,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:48,159 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:48,159 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:48,159 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:48,159 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:48,159 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:18:48,159 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:48,159 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:48,159 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:48,160 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2024-10-31 22:18:48,160 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:48,160 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:48,161 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:48,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:48,296 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:48,297 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:18:48,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:48,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:48,299 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:48,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:18:48,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:48,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:18:48,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:48,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:18:48,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:48,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:48,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:48,361 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:48,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:18:48,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:18:48,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:48,408 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:18:48,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:18:48,413 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:48,413 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:48,414 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:48,414 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:48,414 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:18:48,414 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:48,414 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:48,414 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:48,414 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2024-10-31 22:18:48,414 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:48,414 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:48,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:48,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:48,536 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:48,536 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:18:48,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:48,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:48,539 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:48,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:18:48,542 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 22:18:48,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:48,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:48,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:48,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:48,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:48,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:48,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:48,562 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:18:48,567 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:18:48,567 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:18:48,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:48,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:48,570 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:48,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:18:48,573 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:18:48,573 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:18:48,573 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:18:48,574 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 22:18:48,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:48,593 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:18:48,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:48,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:18:48,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:48,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:18:48,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:48,689 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 22:18:48,689 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 22:18:48,689 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 67 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 22:18:48,722 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 67 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 77 states and 103 transitions. Complement of second has 5 states. [2024-10-31 22:18:48,723 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 22:18:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 22:18:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-10-31 22:18:48,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 3 letters. [2024-10-31 22:18:48,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:48,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 16 letters. Loop has 3 letters. [2024-10-31 22:18:48,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:48,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 6 letters. [2024-10-31 22:18:48,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:48,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 103 transitions. [2024-10-31 22:18:48,730 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2024-10-31 22:18:48,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 70 states and 94 transitions. [2024-10-31 22:18:48,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2024-10-31 22:18:48,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2024-10-31 22:18:48,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 94 transitions. [2024-10-31 22:18:48,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:48,732 INFO L218 hiAutomatonCegarLoop]: Abstraction has 70 states and 94 transitions. [2024-10-31 22:18:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 94 transitions. [2024-10-31 22:18:48,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2024-10-31 22:18:48,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 51 states have internal predecessors, (71), 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 22:18:48,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2024-10-31 22:18:48,738 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 71 transitions. [2024-10-31 22:18:48,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:48,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:48,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:48,739 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. 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 22:18:48,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:48,794 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions. [2024-10-31 22:18:48,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 72 transitions. [2024-10-31 22:18:48,795 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-10-31 22:18:48,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 53 states and 71 transitions. [2024-10-31 22:18:48,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2024-10-31 22:18:48,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-10-31 22:18:48,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 71 transitions. [2024-10-31 22:18:48,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:48,797 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 71 transitions. [2024-10-31 22:18:48,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 71 transitions. [2024-10-31 22:18:48,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2024-10-31 22:18:48,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 51 states have internal predecessors, (70), 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 22:18:48,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2024-10-31 22:18:48,805 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-10-31 22:18:48,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:48,806 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-10-31 22:18:48,806 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:18:48,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 70 transitions. [2024-10-31 22:18:48,807 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-10-31 22:18:48,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:18:48,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:18:48,807 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:48,807 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:18:48,808 INFO L745 eck$LassoCheckResult]: Stem: 1509#$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(22, 2);call #Ultimate.allocInit(12, 3); 1473#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 1474#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1505#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1499#base2flt_returnLabel#1 main_#t~ret19#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~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 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; 1500#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1478#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1479#L47-3 assume !false; 1504#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1491#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1492#L47-3 assume !false; 1503#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1495#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1471#base2flt_returnLabel#2 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_~one~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; 1472#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1496#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1498#L47-5 [2024-10-31 22:18:48,808 INFO L747 eck$LassoCheckResult]: Loop: 1498#L47-5 assume !false; 1502#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1507#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1498#L47-5 [2024-10-31 22:18:48,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1820795632, now seen corresponding path program 1 times [2024-10-31 22:18:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:48,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212342175] [2024-10-31 22:18:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:48,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:48,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:48,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:48,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212342175] [2024-10-31 22:18:48,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212342175] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:18:48,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658299444] [2024-10-31 22:18:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:48,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:18:48,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:48,930 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:18:48,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-31 22:18:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:48,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:18:48,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:49,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:18:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:49,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658299444] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:18:49,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:18:49,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-31 22:18:49,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474981114] [2024-10-31 22:18:49,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:18:49,062 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:18:49,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:49,063 INFO L85 PathProgramCache]: Analyzing trace with hash 223621, now seen corresponding path program 1 times [2024-10-31 22:18:49,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:49,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488115783] [2024-10-31 22:18:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:49,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:49,067 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:49,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:49,108 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:49,108 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:49,108 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:49,109 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:49,109 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:18:49,109 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:49,109 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:49,109 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:49,109 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2024-10-31 22:18:49,109 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:49,109 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:49,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:49,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:49,249 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:49,249 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:18:49,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:49,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:49,252 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:49,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:18:49,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:18:49,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:49,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:49,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:49,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:49,293 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:49,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:18:49,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:18:49,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:49,335 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:18:49,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-31 22:18:49,341 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:49,341 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:49,341 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:49,341 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:49,341 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:18:49,342 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:49,342 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:49,342 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:49,342 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2024-10-31 22:18:49,342 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:49,342 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:49,343 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:49,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:49,482 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:49,482 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:18:49,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:49,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:49,486 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:49,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:18:49,489 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 22:18:49,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:49,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:49,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:49,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:49,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:49,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:49,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:49,510 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:18:49,513 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:18:49,514 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:18:49,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:49,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:49,516 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:49,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:18:49,518 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:18:49,519 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:18:49,519 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:18:49,519 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 22:18:49,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:49,538 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:18:49,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:49,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:18:49,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:49,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:18:49,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:49,629 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 22:18:49,630 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 22:18:49,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 70 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:49,656 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 70 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 107 transitions. Complement of second has 5 states. [2024-10-31 22:18:49,657 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 22:18:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-10-31 22:18:49,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 3 letters. [2024-10-31 22:18:49,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:49,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 19 letters. Loop has 3 letters. [2024-10-31 22:18:49,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:49,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 6 letters. [2024-10-31 22:18:49,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:49,659 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 107 transitions. [2024-10-31 22:18:49,660 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2024-10-31 22:18:49,660 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 98 transitions. [2024-10-31 22:18:49,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2024-10-31 22:18:49,661 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2024-10-31 22:18:49,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 98 transitions. [2024-10-31 22:18:49,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:49,661 INFO L218 hiAutomatonCegarLoop]: Abstraction has 74 states and 98 transitions. [2024-10-31 22:18:49,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 98 transitions. [2024-10-31 22:18:49,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 55. [2024-10-31 22:18:49,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 54 states have internal predecessors, (74), 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 22:18:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2024-10-31 22:18:49,664 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 74 transitions. [2024-10-31 22:18:49,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:49,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:18:49,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:18:49,665 INFO L87 Difference]: Start difference. First operand 55 states and 74 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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 22:18:49,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:49,747 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2024-10-31 22:18:49,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 126 transitions. [2024-10-31 22:18:49,748 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 22:18:49,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 86 states and 120 transitions. [2024-10-31 22:18:49,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2024-10-31 22:18:49,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2024-10-31 22:18:49,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 120 transitions. [2024-10-31 22:18:49,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:49,749 INFO L218 hiAutomatonCegarLoop]: Abstraction has 86 states and 120 transitions. [2024-10-31 22:18:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 120 transitions. [2024-10-31 22:18:49,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 63. [2024-10-31 22:18:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 62 states have internal predecessors, (85), 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 22:18:49,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2024-10-31 22:18:49,752 INFO L240 hiAutomatonCegarLoop]: Abstraction has 63 states and 85 transitions. [2024-10-31 22:18:49,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:18:49,753 INFO L425 stractBuchiCegarLoop]: Abstraction has 63 states and 85 transitions. [2024-10-31 22:18:49,753 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:18:49,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 85 transitions. [2024-10-31 22:18:49,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-31 22:18:49,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:18:49,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:18:49,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:49,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:18:49,755 INFO L745 eck$LassoCheckResult]: Stem: 1963#$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(22, 2);call #Ultimate.allocInit(12, 3); 1923#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 1924#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1957#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1948#base2flt_returnLabel#1 main_#t~ret19#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~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 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; 1949#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1928#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1929#L47-3 assume !false; 1961#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1970#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1943#$Ultimate##64 assume 0 == base2flt_~m#1 % 4294967296;base2flt_#t~bitwise4#1 := 0; 1911#L76-9 base2flt_~m#1 := base2flt_#t~bitwise4#1;havoc base2flt_#t~bitwise4#1; 1912#L77-6 assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~bitwise5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296); 1909#L77-11 base2flt_~res~0#1 := base2flt_#t~bitwise5#1;havoc base2flt_#t~bitwise5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1944#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1921#base2flt_returnLabel#2 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_~one~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; 1922#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1913#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1914#base2flt_returnLabel#3 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; 1960#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1925#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 1926#L47-7 [2024-10-31 22:18:49,755 INFO L747 eck$LassoCheckResult]: Loop: 1926#L47-7 assume !false; 1917#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1918#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 1926#L47-7 [2024-10-31 22:18:49,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:49,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1123658843, now seen corresponding path program 1 times [2024-10-31 22:18:49,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:49,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357050931] [2024-10-31 22:18:49,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:49,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:49,795 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 22:18:49,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:49,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357050931] [2024-10-31 22:18:49,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357050931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:49,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:49,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:49,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617985032] [2024-10-31 22:18:49,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:49,797 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:18:49,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:49,798 INFO L85 PathProgramCache]: Analyzing trace with hash 311005, now seen corresponding path program 1 times [2024-10-31 22:18:49,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:49,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605880021] [2024-10-31 22:18:49,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:49,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:49,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:49,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:49,842 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:49,843 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:49,843 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:49,843 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:49,843 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:18:49,843 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:49,843 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:49,843 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:49,843 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2024-10-31 22:18:49,844 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:49,844 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:49,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:49,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:49,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 22:18:50,016 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:50,018 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:18:50,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-31 22:18:50,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:50,021 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:50,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:18:50,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:18:50,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:50,060 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:18:50,060 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 22:18:50,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:50,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:50,067 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:50,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:18:50,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:18:50,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:50,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-31 22:18:50,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:50,107 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:50,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:18:50,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:18:50,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:50,152 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:18:50,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:50,157 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:50,157 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:50,157 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:50,157 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:50,157 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:18:50,157 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,157 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:50,158 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:50,158 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2024-10-31 22:18:50,158 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:50,158 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:50,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:50,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:50,285 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:50,286 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:18:50,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:50,288 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:50,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:18:50,291 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 22:18:50,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:50,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:50,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:50,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:50,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:50,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:50,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:50,319 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:18:50,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:50,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:50,340 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:50,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:18:50,342 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 22:18:50,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:50,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:50,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:50,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:50,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:50,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:50,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:50,360 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:18:50,363 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:18:50,363 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:18:50,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:50,365 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:50,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:18:50,367 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:18:50,367 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:18:50,367 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:18:50,367 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 22:18:50,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 22:18:50,385 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:18:50,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:50,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:18:50,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:50,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:18:50,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:50,493 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 22:18:50,494 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 22:18:50,494 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 85 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 22:18:50,500 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 85 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 67 states and 89 transitions. Complement of second has 4 states. [2024-10-31 22:18:50,500 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 22:18:50,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 22:18:50,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-10-31 22:18:50,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 21 letters. Loop has 3 letters. [2024-10-31 22:18:50,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:50,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 24 letters. Loop has 3 letters. [2024-10-31 22:18:50,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:50,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 21 letters. Loop has 6 letters. [2024-10-31 22:18:50,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:50,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 89 transitions. [2024-10-31 22:18:50,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:18:50,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 60 states and 81 transitions. [2024-10-31 22:18:50,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2024-10-31 22:18:50,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2024-10-31 22:18:50,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2024-10-31 22:18:50,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:50,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 81 transitions. [2024-10-31 22:18:50,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2024-10-31 22:18:50,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-10-31 22:18:50,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.35) internal successors, (81), 59 states have internal predecessors, (81), 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 22:18:50,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2024-10-31 22:18:50,509 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 81 transitions. [2024-10-31 22:18:50,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:50,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:50,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:50,510 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 22:18:50,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:50,589 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2024-10-31 22:18:50,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 91 transitions. [2024-10-31 22:18:50,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:18:50,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 69 states and 91 transitions. [2024-10-31 22:18:50,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2024-10-31 22:18:50,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2024-10-31 22:18:50,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 91 transitions. [2024-10-31 22:18:50,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:18:50,591 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 91 transitions. [2024-10-31 22:18:50,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 91 transitions. [2024-10-31 22:18:50,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2024-10-31 22:18:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 61 states have internal predecessors, (83), 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 22:18:50,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2024-10-31 22:18:50,594 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 83 transitions. [2024-10-31 22:18:50,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:50,595 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 83 transitions. [2024-10-31 22:18:50,595 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:18:50,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 83 transitions. [2024-10-31 22:18:50,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:18:50,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:18:50,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:18:50,600 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:50,600 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:18:50,600 INFO L745 eck$LassoCheckResult]: Stem: 2308#$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(22, 2);call #Ultimate.allocInit(12, 3); 2270#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 2271#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2303#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2294#base2flt_returnLabel#1 main_#t~ret19#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~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 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; 2295#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2274#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2275#L47-3 assume !false; 2302#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 2287#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2289#$Ultimate##64 assume !(0 == base2flt_~m#1 % 4294967296); 2266#L76-6 assume 4278190079 == base2flt_~m#1 % 4294967296;base2flt_#t~bitwise4#1 := base2flt_~m#1; 2260#L76-9 base2flt_~m#1 := base2flt_#t~bitwise4#1;havoc base2flt_#t~bitwise4#1; 2261#L77-6 assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~bitwise5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296); 2258#L77-11 base2flt_~res~0#1 := base2flt_#t~bitwise5#1;havoc base2flt_#t~bitwise5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2290#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2268#base2flt_returnLabel#2 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_~one~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; 2269#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2262#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2263#base2flt_returnLabel#3 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; 2306#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2272#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2273#L57-11 [2024-10-31 22:18:50,600 INFO L747 eck$LassoCheckResult]: Loop: 2273#L57-11 assume !false; 2276#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 2277#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 2273#L57-11 [2024-10-31 22:18:50,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:50,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1482624755, now seen corresponding path program 1 times [2024-10-31 22:18:50,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:50,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165249032] [2024-10-31 22:18:50,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:50,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:50,685 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 22:18:50,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:50,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165249032] [2024-10-31 22:18:50,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165249032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:50,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:50,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:18:50,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247709066] [2024-10-31 22:18:50,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:50,687 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:18:50,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:50,687 INFO L85 PathProgramCache]: Analyzing trace with hash 336764, now seen corresponding path program 1 times [2024-10-31 22:18:50,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:50,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193393502] [2024-10-31 22:18:50,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:50,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:50,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:50,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:50,732 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:50,732 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:50,732 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:50,732 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:50,732 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:18:50,733 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,733 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:50,733 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:50,733 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2024-10-31 22:18:50,733 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:50,733 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:50,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:50,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:50,845 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:50,845 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:18:50,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:50,847 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:50,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:18:50,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:18:50,850 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:50,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:50,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:50,893 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:50,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:18:50,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:18:50,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:18:50,938 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:18:50,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:50,942 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:18:50,942 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:18:50,942 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:18:50,942 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:18:50,942 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:18:50,943 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:50,943 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:18:50,943 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:18:50,943 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2024-10-31 22:18:50,943 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:18:50,943 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:18:50,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:50,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:18:51,055 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:18:51,055 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:18:51,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:51,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:51,058 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:51,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:18:51,063 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 22:18:51,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:51,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:51,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:51,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:51,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:51,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:51,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:51,085 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:18:51,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-10-31 22:18:51,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:51,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:51,105 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:51,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:18:51,107 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 22:18:51,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:18:51,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:18:51,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:18:51,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:18:51,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:18:51,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:18:51,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:18:51,124 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:18:51,128 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:18:51,128 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:18:51,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:18:51,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:51,131 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:51,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:18:51,133 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:18:51,133 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:18:51,133 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:18:51,133 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 22:18:51,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:51,153 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:18:51,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:51,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:18:51,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:51,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:18:51,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:18:51,252 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 22:18:51,253 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 22:18:51,253 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 83 transitions. cyclomatic complexity: 25 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 22:18:51,262 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 83 transitions. cyclomatic complexity: 25. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 65 states and 87 transitions. Complement of second has 4 states. [2024-10-31 22:18:51,263 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 22:18:51,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 22:18:51,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-10-31 22:18:51,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 22 letters. Loop has 3 letters. [2024-10-31 22:18:51,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:51,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 25 letters. Loop has 3 letters. [2024-10-31 22:18:51,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:51,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 22 letters. Loop has 6 letters. [2024-10-31 22:18:51,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:18:51,267 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 87 transitions. [2024-10-31 22:18:51,268 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:18:51,268 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 0 states and 0 transitions. [2024-10-31 22:18:51,268 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:18:51,268 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:18:51,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:18:51,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:18:51,268 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:18:51,268 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:18:51,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:51,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:18:51,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:18:51,271 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22:18:51,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:51,272 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-31 22:18:51,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-31 22:18:51,272 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:18:51,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:18:51,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:18:51,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:18:51,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:18:51,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:18:51,273 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:18:51,273 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:18:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:18:51,273 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:18:51,274 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:18:51,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:18:51,274 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:18:51,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:18:51,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:18:51 BoogieIcfgContainer [2024-10-31 22:18:51,283 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:18:51,283 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:18:51,283 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:18:51,284 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:18:51,284 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:44" (3/4) ... [2024-10-31 22:18:51,286 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:18:51,288 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:18:51,289 INFO L158 Benchmark]: Toolchain (without parser) took 8434.76ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 109.2MB in the beginning and 61.7MB in the end (delta: 47.5MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2024-10-31 22:18:51,289 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 109.1MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:18:51,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.17ms. Allocated memory is still 140.5MB. Free memory was 108.9MB in the beginning and 93.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-31 22:18:51,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.40ms. Allocated memory is still 140.5MB. Free memory was 93.8MB in the beginning and 91.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:18:51,290 INFO L158 Benchmark]: Boogie Preprocessor took 71.89ms. Allocated memory is still 140.5MB. Free memory was 91.1MB in the beginning and 87.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:18:51,290 INFO L158 Benchmark]: RCFGBuilder took 977.74ms. Allocated memory is still 140.5MB. Free memory was 87.9MB in the beginning and 57.6MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-31 22:18:51,291 INFO L158 Benchmark]: BuchiAutomizer took 6904.85ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 57.6MB in the beginning and 61.7MB in the end (delta: -4.1MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-10-31 22:18:51,291 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 172.0MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:18:51,293 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 109.1MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.17ms. Allocated memory is still 140.5MB. Free memory was 108.9MB in the beginning and 93.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.40ms. Allocated memory is still 140.5MB. Free memory was 93.8MB in the beginning and 91.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.89ms. Allocated memory is still 140.5MB. Free memory was 91.1MB in the beginning and 87.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 977.74ms. Allocated memory is still 140.5MB. Free memory was 87.9MB in the beginning and 57.6MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6904.85ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 57.6MB in the beginning and 61.7MB in the end (delta: -4.1MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 172.0MB. Free memory is still 61.7MB. 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 13 terminating modules (6 trivial, 7 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. 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. 6 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.8s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 5.0s. Construction of modules took 0.4s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 10. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 163 StatesRemovedByMinimization, 9 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 [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 655 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 648 mSDsluCounter, 1099 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 226 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 873 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp61 ukn100 mio100 lsp100 div612 bol100 ite100 ukn100 eq132 hnf96 smp41 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s 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 22:18:51,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-10-31 22:18:51,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-31 22:18:51,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-31 22:18:51,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3c6c5a9-8b81-4476-9178-87c7df2d9620/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE