./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx --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 f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:02:14,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:02:14,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 21:02:14,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:02:14,248 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:02:14,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:02:14,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:02:14,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:02:14,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:02:14,278 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:02:14,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:02:14,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:02:14,280 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:02:14,281 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 21:02:14,281 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 21:02:14,282 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 21:02:14,282 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 21:02:14,283 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 21:02:14,283 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 21:02:14,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:02:14,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 21:02:14,285 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:02:14,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:02:14,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:02:14,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:02:14,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 21:02:14,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 21:02:14,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 21:02:14,287 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:02:14,288 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:02:14,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:02:14,288 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 21:02:14,289 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:02:14,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:02:14,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:02:14,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:02:14,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:02:14,295 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 21:02:14,295 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_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2023-11-21 21:02:14,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:02:14,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:02:14,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:02:14,659 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:02:14,660 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:02:14,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-11-21 21:02:17,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:02:18,047 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:02:18,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-11-21 21:02:18,056 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/data/d6c69b9b8/c78b54db814a4751be5d3856da77e2e3/FLAG0a9358c0c [2023-11-21 21:02:18,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/data/d6c69b9b8/c78b54db814a4751be5d3856da77e2e3 [2023-11-21 21:02:18,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:02:18,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:02:18,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:18,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:02:18,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:02:18,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa9da74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18, skipping insertion in model container [2023-11-21 21:02:18,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,139 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:02:18,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:18,371 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:02:18,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:18,435 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:02:18,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18 WrapperNode [2023-11-21 21:02:18,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:18,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:18,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:02:18,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:02:18,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,501 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 11, calls inlined = 9, statements flattened = 371 [2023-11-21 21:02:18,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:18,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:02:18,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:02:18,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:02:18,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,518 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,531 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 21:02:18,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,554 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:02:18,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:02:18,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:02:18,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:02:18,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:18,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:18,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:18,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 21:02:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:02:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:02:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:02:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:02:18,749 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:02:18,751 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:02:19,332 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:02:19,350 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:02:19,350 INFO L308 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-21 21:02:19,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:19 BoogieIcfgContainer [2023-11-21 21:02:19,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:02:19,353 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 21:02:19,354 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 21:02:19,357 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 21:02:19,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:02:19,358 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:02:18" (1/3) ... [2023-11-21 21:02:19,358 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a632511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:02:19, skipping insertion in model container [2023-11-21 21:02:19,359 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:02:19,359 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (2/3) ... [2023-11-21 21:02:19,359 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a632511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:02:19, skipping insertion in model container [2023-11-21 21:02:19,359 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:02:19,359 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:19" (3/3) ... [2023-11-21 21:02:19,361 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2023-11-21 21:02:19,421 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 21:02:19,421 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 21:02:19,421 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 21:02:19,421 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 21:02:19,422 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 21:02:19,422 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 21:02:19,422 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 21:02:19,422 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 21:02:19,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.7403846153846154) internal successors, (181), 104 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:19,460 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2023-11-21 21:02:19,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:19,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:19,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-21 21:02:19,467 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:02:19,467 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 21:02:19,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.7403846153846154) internal successors, (181), 104 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:19,478 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2023-11-21 21:02:19,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:19,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:19,481 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-21 21:02:19,482 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:02:19,491 INFO L748 eck$LassoCheckResult]: Stem: 24#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 32#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 68#L29true assume !(0 == base2flt_~m#1 % 4294967296); 87#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 48#L57-2true [2023-11-21 21:02:19,492 INFO L750 eck$LassoCheckResult]: Loop: 48#L57-2true assume !false; 31#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 77#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 48#L57-2true [2023-11-21 21:02:19,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:19,500 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2023-11-21 21:02:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:19,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010008432] [2023-11-21 21:02:19,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:19,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:19,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:19,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:19,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010008432] [2023-11-21 21:02:19,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010008432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:19,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:19,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:19,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416727942] [2023-11-21 21:02:19,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:19,817 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:02:19,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:19,819 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2023-11-21 21:02:19,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:19,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344312221] [2023-11-21 21:02:19,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:19,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:19,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:19,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:19,944 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:19,944 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:19,945 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:19,945 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:19,945 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 21:02:19,945 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:19,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:19,946 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:19,946 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2023-11-21 21:02:19,947 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:19,947 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:19,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:19,993 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:20,157 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:20,157 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 21:02:20,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:20,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:20,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:20,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 21:02:20,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:20,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 21:02:20,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:20,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:20,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:20,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:20,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 21:02:20,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 21:02:20,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:20,264 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 21:02:20,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:20,271 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:20,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:20,272 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:20,272 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:20,272 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:02:20,272 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:20,272 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:20,272 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:20,273 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2023-11-21 21:02:20,273 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:20,273 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:20,274 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:20,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:20,414 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:20,419 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:02:20,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:20,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:20,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:20,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:02:20,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:02:20,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:02:20,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:02:20,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:02:20,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:02:20,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:02:20,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:02:20,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 21:02:20,464 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:02:20,470 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 21:02:20,471 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 21:02:20,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:20,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:20,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:20,498 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:02:20,498 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 21:02:20,499 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:02:20,499 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-21 21:02:20,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 21:02:20,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:20,529 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 21:02:20,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:20,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:02:20,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:20,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:20,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:20,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:20,672 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-21 21:02:20,678 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 105 states, 104 states have (on average 1.7403846153846154) internal successors, (181), 104 states have internal predecessors, (181), 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) [2023-11-21 21:02:20,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 105 states, 104 states have (on average 1.7403846153846154) internal successors, (181), 104 states have internal predecessors, (181), 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 312 states and 532 transitions. Complement of second has 6 states. [2023-11-21 21:02:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 21:02:20,864 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) [2023-11-21 21:02:20,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 352 transitions. [2023-11-21 21:02:20,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 352 transitions. Stem has 4 letters. Loop has 3 letters. [2023-11-21 21:02:20,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:20,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 352 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-21 21:02:20,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:20,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 352 transitions. Stem has 4 letters. Loop has 6 letters. [2023-11-21 21:02:20,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:20,873 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 532 transitions. [2023-11-21 21:02:20,895 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2023-11-21 21:02:20,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 109 states and 174 transitions. [2023-11-21 21:02:20,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2023-11-21 21:02:20,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2023-11-21 21:02:20,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 174 transitions. [2023-11-21 21:02:20,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:20,910 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 174 transitions. [2023-11-21 21:02:20,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 174 transitions. [2023-11-21 21:02:20,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 93. [2023-11-21 21:02:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.6451612903225807) internal successors, (153), 92 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 153 transitions. [2023-11-21 21:02:20,952 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 153 transitions. [2023-11-21 21:02:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:20,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:20,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:20,958 INFO L87 Difference]: Start difference. First operand 93 states and 153 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) [2023-11-21 21:02:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:21,054 INFO L93 Difference]: Finished difference Result 45 states and 66 transitions. [2023-11-21 21:02:21,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 66 transitions. [2023-11-21 21:02:21,057 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2023-11-21 21:02:21,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 66 transitions. [2023-11-21 21:02:21,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2023-11-21 21:02:21,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2023-11-21 21:02:21,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 66 transitions. [2023-11-21 21:02:21,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:21,061 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-21 21:02:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 66 transitions. [2023-11-21 21:02:21,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-21 21:02:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 44 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:21,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2023-11-21 21:02:21,071 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-21 21:02:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:21,073 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-21 21:02:21,073 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 21:02:21,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 66 transitions. [2023-11-21 21:02:21,075 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2023-11-21 21:02:21,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:21,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:21,076 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:21,076 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:02:21,076 INFO L748 eck$LassoCheckResult]: Stem: 642#$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); 608#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_~sb~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_~sb~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~nondet4#1, base2flt_#t~nondet5#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; 609#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 639#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 633#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 634#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 616#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 617#L47-3 [2023-11-21 21:02:21,077 INFO L750 eck$LassoCheckResult]: Loop: 617#L47-3 assume !false; 636#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 630#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 617#L47-3 [2023-11-21 21:02:21,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:21,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335815, now seen corresponding path program 1 times [2023-11-21 21:02:21,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:21,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072433899] [2023-11-21 21:02:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:21,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:21,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:21,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:21,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:21,109 INFO L85 PathProgramCache]: Analyzing trace with hash 134251, now seen corresponding path program 1 times [2023-11-21 21:02:21,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:21,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392083709] [2023-11-21 21:02:21,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:21,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:21,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:21,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:21,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:21,120 INFO L85 PathProgramCache]: Analyzing trace with hash 631346469, now seen corresponding path program 1 times [2023-11-21 21:02:21,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:21,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191917882] [2023-11-21 21:02:21,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:21,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:21,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:21,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:21,218 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:21,218 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:21,218 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:21,218 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:21,218 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 21:02:21,218 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:21,218 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:21,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:21,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2023-11-21 21:02:21,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:21,219 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:21,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:21,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:21,347 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:21,347 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 21:02:21,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:21,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:21,348 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:21,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 21:02:21,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 21:02:21,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:21,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 21:02:21,383 INFO L440 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: [] [2023-11-21 21:02:21,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:21,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:21,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:21,389 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:21,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 21:02:21,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 21:02:21,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:21,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:21,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:21,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:21,453 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:21,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 21:02:21,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:21,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 21:02:21,524 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 21:02:21,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:21,532 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:21,532 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:21,532 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:21,532 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:21,532 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:02:21,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:21,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:21,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:21,533 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2023-11-21 21:02:21,533 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:21,533 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:21,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:21,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:21,679 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:21,680 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:02:21,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:21,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:21,686 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:21,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:02:21,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:02:21,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:02:21,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:02:21,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:02:21,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:02:21,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:02:21,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:02:21,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 21:02:21,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:02:21,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:21,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:21,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:21,740 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:21,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:02:21,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:02:21,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:02:21,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:02:21,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:02:21,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:02:21,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:02:21,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:02:21,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 21:02:21,778 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:02:21,780 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 21:02:21,781 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 21:02:21,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:21,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:21,782 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:21,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 21:02:21,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:02:21,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 21:02:21,786 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:02:21,786 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2023-11-21 21:02:21,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:21,807 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 21:02:21,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:21,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:02:21,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:21,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:21,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-21 21:02:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:21,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:21,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:21,960 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 [2023-11-21 21:02:21,961 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 66 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) [2023-11-21 21:02:22,011 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 66 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 89 states and 131 transitions. Complement of second has 5 states. [2023-11-21 21:02:22,011 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 [2023-11-21 21:02:22,013 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) [2023-11-21 21:02:22,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2023-11-21 21:02:22,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-21 21:02:22,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:22,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-21 21:02:22,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:22,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-21 21:02:22,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:22,015 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 131 transitions. [2023-11-21 21:02:22,016 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2023-11-21 21:02:22,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 81 states and 118 transitions. [2023-11-21 21:02:22,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2023-11-21 21:02:22,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2023-11-21 21:02:22,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 118 transitions. [2023-11-21 21:02:22,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:22,024 INFO L218 hiAutomatonCegarLoop]: Abstraction has 81 states and 118 transitions. [2023-11-21 21:02:22,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 118 transitions. [2023-11-21 21:02:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2023-11-21 21:02:22,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 47 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) [2023-11-21 21:02:22,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2023-11-21 21:02:22,031 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-21 21:02:22,031 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-21 21:02:22,031 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 21:02:22,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 70 transitions. [2023-11-21 21:02:22,033 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2023-11-21 21:02:22,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:22,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:22,034 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:22,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:02:22,036 INFO L748 eck$LassoCheckResult]: Stem: 829#$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); 792#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_~sb~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_~sb~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~nondet4#1, base2flt_#t~nondet5#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; 793#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 826#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 819#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 820#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 800#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 802#L57-5 [2023-11-21 21:02:22,036 INFO L750 eck$LassoCheckResult]: Loop: 802#L57-5 assume !false; 803#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 804#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 802#L57-5 [2023-11-21 21:02:22,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:22,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335841, now seen corresponding path program 1 times [2023-11-21 21:02:22,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:22,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821088152] [2023-11-21 21:02:22,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:22,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:22,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:22,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821088152] [2023-11-21 21:02:22,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821088152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:22,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:22,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:22,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668904687] [2023-11-21 21:02:22,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:22,172 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:02:22,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:22,172 INFO L85 PathProgramCache]: Analyzing trace with hash 160010, now seen corresponding path program 1 times [2023-11-21 21:02:22,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:22,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231781973] [2023-11-21 21:02:22,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:22,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:22,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:22,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:22,227 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:22,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:22,228 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:22,228 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:22,228 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 21:02:22,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:22,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:22,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:22,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2023-11-21 21:02:22,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:22,230 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:22,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:22,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:22,336 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:22,337 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 21:02:22,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:22,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:22,338 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:22,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 21:02:22,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:22,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-21 21:02:22,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:22,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:22,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:22,396 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:22,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-21 21:02:22,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 21:02:22,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:22,466 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 21:02:22,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:22,471 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:22,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:22,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:22,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:22,471 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:02:22,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:22,471 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:22,471 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:22,472 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2023-11-21 21:02:22,472 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:22,472 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:22,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:22,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:22,591 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:22,591 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:02:22,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:22,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:22,598 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:22,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:02:22,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:02:22,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:02:22,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:02:22,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:02:22,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:02:22,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:02:22,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:02:22,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-21 21:02:22,631 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:02:22,633 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 21:02:22,633 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 21:02:22,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:22,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:22,638 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:22,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-21 21:02:22,642 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:02:22,643 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 21:02:22,643 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:02:22,643 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-21 21:02:22,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:22,662 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 21:02:22,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:22,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:02:22,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:22,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:22,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:22,724 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-21 21:02:22,725 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 70 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) [2023-11-21 21:02:22,749 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 70 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 91 states and 134 transitions. Complement of second has 5 states. [2023-11-21 21:02:22,749 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 [2023-11-21 21:02:22,751 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) [2023-11-21 21:02:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2023-11-21 21:02:22,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-21 21:02:22,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:22,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-21 21:02:22,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:22,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-21 21:02:22,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:22,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2023-11-21 21:02:22,755 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2023-11-21 21:02:22,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 83 states and 121 transitions. [2023-11-21 21:02:22,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2023-11-21 21:02:22,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2023-11-21 21:02:22,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 121 transitions. [2023-11-21 21:02:22,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:22,759 INFO L218 hiAutomatonCegarLoop]: Abstraction has 83 states and 121 transitions. [2023-11-21 21:02:22,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 121 transitions. [2023-11-21 21:02:22,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 51. [2023-11-21 21:02:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 50 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) [2023-11-21 21:02:22,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2023-11-21 21:02:22,769 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 74 transitions. [2023-11-21 21:02:22,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:22,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:22,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:22,770 INFO L87 Difference]: Start difference. First operand 51 states and 74 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) [2023-11-21 21:02:22,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:22,841 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2023-11-21 21:02:22,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2023-11-21 21:02:22,842 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2023-11-21 21:02:22,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 67 transitions. [2023-11-21 21:02:22,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2023-11-21 21:02:22,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2023-11-21 21:02:22,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2023-11-21 21:02:22,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:22,844 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2023-11-21 21:02:22,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2023-11-21 21:02:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2023-11-21 21:02:22,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4) internal successors, (63), 44 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:22,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2023-11-21 21:02:22,855 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2023-11-21 21:02:22,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:22,858 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2023-11-21 21:02:22,858 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 21:02:22,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2023-11-21 21:02:22,859 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2023-11-21 21:02:22,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:22,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:22,860 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:22,860 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:02:22,860 INFO L748 eck$LassoCheckResult]: Stem: 1113#$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); 1079#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_~sb~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_~sb~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~nondet4#1, base2flt_#t~nondet5#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; 1080#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1110#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1103#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 1104#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1087#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1088#L47-3 assume !false; 1106#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1076#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1077#base2flt_returnLabel#2 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 1078#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1098#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1099#L57-8 [2023-11-21 21:02:22,860 INFO L750 eck$LassoCheckResult]: Loop: 1099#L57-8 assume !false; 1092#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1093#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 1099#L57-8 [2023-11-21 21:02:22,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash 780922602, now seen corresponding path program 1 times [2023-11-21 21:02:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:22,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788526168] [2023-11-21 21:02:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:22,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:22,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:22,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788526168] [2023-11-21 21:02:22,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788526168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:22,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:22,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:02:22,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662684417] [2023-11-21 21:02:22,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:22,970 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:02:22,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash 245408, now seen corresponding path program 1 times [2023-11-21 21:02:22,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:22,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358422190] [2023-11-21 21:02:22,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:22,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:22,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:22,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:23,035 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:23,036 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:23,036 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:23,036 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:23,036 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 21:02:23,036 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:23,036 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:23,036 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:23,036 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2023-11-21 21:02:23,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:23,037 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:23,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:23,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:23,144 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:23,144 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 21:02:23,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:23,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:23,146 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:23,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 21:02:23,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:23,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-21 21:02:23,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:23,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:23,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:23,202 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:23,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 21:02:23,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:23,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-21 21:02:23,251 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 21:02:23,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:23,260 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:23,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:23,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:23,260 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:23,260 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:02:23,260 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:23,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:23,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:23,260 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2023-11-21 21:02:23,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:23,261 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:23,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:23,268 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:23,360 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:23,360 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:02:23,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:23,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:23,362 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:23,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:02:23,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-21 21:02:23,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:02:23,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:02:23,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:02:23,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:02:23,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:02:23,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:02:23,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:02:23,398 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:02:23,411 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 21:02:23,411 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 21:02:23,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:23,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:23,412 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:23,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-21 21:02:23,418 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:02:23,418 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 21:02:23,418 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:02:23,418 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-21 21:02:23,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:23,439 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 21:02:23,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:23,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:02:23,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:23,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:23,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:23,511 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-21 21:02:23,511 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 63 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) [2023-11-21 21:02:23,532 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 63 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 72 states and 101 transitions. Complement of second has 5 states. [2023-11-21 21:02:23,533 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 [2023-11-21 21:02:23,535 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) [2023-11-21 21:02:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2023-11-21 21:02:23,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 3 letters. [2023-11-21 21:02:23,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:23,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 16 letters. Loop has 3 letters. [2023-11-21 21:02:23,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:23,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 6 letters. [2023-11-21 21:02:23,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:23,538 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 101 transitions. [2023-11-21 21:02:23,539 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2023-11-21 21:02:23,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 64 states and 88 transitions. [2023-11-21 21:02:23,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2023-11-21 21:02:23,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2023-11-21 21:02:23,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 88 transitions. [2023-11-21 21:02:23,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:23,541 INFO L218 hiAutomatonCegarLoop]: Abstraction has 64 states and 88 transitions. [2023-11-21 21:02:23,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 88 transitions. [2023-11-21 21:02:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2023-11-21 21:02:23,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 47 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) [2023-11-21 21:02:23,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2023-11-21 21:02:23,546 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2023-11-21 21:02:23,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:23,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:23,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:23,547 INFO L87 Difference]: Start difference. First operand 48 states and 67 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) [2023-11-21 21:02:23,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:23,582 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2023-11-21 21:02:23,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2023-11-21 21:02:23,583 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2023-11-21 21:02:23,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 49 states and 67 transitions. [2023-11-21 21:02:23,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2023-11-21 21:02:23,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2023-11-21 21:02:23,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2023-11-21 21:02:23,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:23,585 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2023-11-21 21:02:23,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2023-11-21 21:02:23,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2023-11-21 21:02:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.375) internal successors, (66), 47 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:23,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2023-11-21 21:02:23,592 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 66 transitions. [2023-11-21 21:02:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:23,594 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 66 transitions. [2023-11-21 21:02:23,595 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-21 21:02:23,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 66 transitions. [2023-11-21 21:02:23,596 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2023-11-21 21:02:23,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:23,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:23,597 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:23,597 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:02:23,598 INFO L748 eck$LassoCheckResult]: Stem: 1397#$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); 1360#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_~sb~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_~sb~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~nondet4#1, base2flt_#t~nondet5#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; 1361#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1393#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1386#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 1387#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1368#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1369#L47-3 assume !false; 1390#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1377#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1378#L47-3 assume !false; 1389#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1357#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1358#base2flt_returnLabel#2 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 1359#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1381#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1383#L47-5 [2023-11-21 21:02:23,598 INFO L750 eck$LassoCheckResult]: Loop: 1383#L47-5 assume !false; 1388#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1395#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1383#L47-5 [2023-11-21 21:02:23,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash 136451054, now seen corresponding path program 1 times [2023-11-21 21:02:23,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:23,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035904890] [2023-11-21 21:02:23,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:23,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:23,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:23,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035904890] [2023-11-21 21:02:23,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035904890] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:02:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553917589] [2023-11-21 21:02:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:23,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:23,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:23,677 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:02:23,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-21 21:02:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:23,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:23,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:23,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:02:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:23,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553917589] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:02:23,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:02:23,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-21 21:02:23,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853129479] [2023-11-21 21:02:23,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:02:23,803 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:02:23,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:23,803 INFO L85 PathProgramCache]: Analyzing trace with hash 219649, now seen corresponding path program 1 times [2023-11-21 21:02:23,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:23,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695195148] [2023-11-21 21:02:23,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:23,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:23,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:23,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:23,850 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:23,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:23,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:23,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:23,850 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 21:02:23,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:23,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:23,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:23,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2023-11-21 21:02:23,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:23,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:23,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:23,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:23,966 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:23,966 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 21:02:23,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:23,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:23,970 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:23,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-21 21:02:23,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 21:02:23,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:24,015 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 21:02:24,015 INFO L440 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: [] [2023-11-21 21:02:24,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:24,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:24,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:24,025 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:24,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 21:02:24,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:24,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-21 21:02:24,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:24,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:24,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:24,079 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:24,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 21:02:24,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:24,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-21 21:02:24,152 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 21:02:24,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:24,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:24,181 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:24,181 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:24,181 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:24,181 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:24,181 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:02:24,181 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:24,182 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:24,182 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:24,182 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2023-11-21 21:02:24,182 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:24,182 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:24,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:24,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:24,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:24,302 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:24,303 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:02:24,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:24,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:24,304 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:24,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:02:24,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:02:24,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:02:24,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:02:24,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:02:24,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:02:24,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:02:24,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:02:24,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-21 21:02:24,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:02:24,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:24,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:24,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:24,371 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:24,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:02:24,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:02:24,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:02:24,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:02:24,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:02:24,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:02:24,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:02:24,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:02:24,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-21 21:02:24,406 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:02:24,419 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 21:02:24,419 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 21:02:24,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:24,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:24,420 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:24,423 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:02:24,424 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 21:02:24,424 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:02:24,424 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2023-11-21 21:02:24,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-21 21:02:24,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-21 21:02:24,442 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 21:02:24,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:24,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:02:24,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:24,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:24,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:24,558 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 [2023-11-21 21:02:24,558 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 66 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) [2023-11-21 21:02:24,581 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 66 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 76 states and 105 transitions. Complement of second has 5 states. [2023-11-21 21:02:24,581 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 [2023-11-21 21:02:24,584 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) [2023-11-21 21:02:24,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2023-11-21 21:02:24,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 3 letters. [2023-11-21 21:02:24,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:24,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 19 letters. Loop has 3 letters. [2023-11-21 21:02:24,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:24,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 6 letters. [2023-11-21 21:02:24,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:24,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2023-11-21 21:02:24,590 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2023-11-21 21:02:24,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 68 states and 92 transitions. [2023-11-21 21:02:24,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2023-11-21 21:02:24,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2023-11-21 21:02:24,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 92 transitions. [2023-11-21 21:02:24,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:24,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 92 transitions. [2023-11-21 21:02:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 92 transitions. [2023-11-21 21:02:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 51. [2023-11-21 21:02:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 50 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) [2023-11-21 21:02:24,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2023-11-21 21:02:24,595 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 70 transitions. [2023-11-21 21:02:24,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:24,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 21:02:24,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 21:02:24,596 INFO L87 Difference]: Start difference. First operand 51 states and 70 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) [2023-11-21 21:02:24,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:24,726 INFO L93 Difference]: Finished difference Result 96 states and 130 transitions. [2023-11-21 21:02:24,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 130 transitions. [2023-11-21 21:02:24,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-21 21:02:24,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 90 states and 124 transitions. [2023-11-21 21:02:24,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2023-11-21 21:02:24,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2023-11-21 21:02:24,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 124 transitions. [2023-11-21 21:02:24,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:24,730 INFO L218 hiAutomatonCegarLoop]: Abstraction has 90 states and 124 transitions. [2023-11-21 21:02:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 124 transitions. [2023-11-21 21:02:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 59. [2023-11-21 21:02:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 58 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) [2023-11-21 21:02:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-11-21 21:02:24,732 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-21 21:02:24,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 21:02:24,734 INFO L428 stractBuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-21 21:02:24,734 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-21 21:02:24,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2023-11-21 21:02:24,735 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-21 21:02:24,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:24,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:24,736 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] [2023-11-21 21:02:24,736 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:02:24,736 INFO L748 eck$LassoCheckResult]: Stem: 1842#$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); 1801#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_~sb~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_~sb~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~nondet4#1, base2flt_#t~nondet5#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; 1802#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1836#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1826#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 1827#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1809#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1810#L47-3 assume !false; 1840#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1846#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1820#$Ultimate##64 assume 0 == base2flt_~m#1 % 4294967296;base2flt_#t~nondet4#1 := 0; 1834#L76-7 base2flt_~m#1 := base2flt_#t~nondet4#1;havoc base2flt_#t~nondet4#1; 1824#L77-5 assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~nondet5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296); 1797#L77-9 base2flt_~res~0#1 := base2flt_#t~nondet5#1;havoc base2flt_#t~nondet5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1798#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1799#base2flt_returnLabel#2 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 1800#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1791#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1792#base2flt_returnLabel#3 main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 1839#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1803#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1804#L57-11 [2023-11-21 21:02:24,737 INFO L750 eck$LassoCheckResult]: Loop: 1804#L57-11 assume !false; 1811#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 1812#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 1804#L57-11 [2023-11-21 21:02:24,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1276938091, now seen corresponding path program 1 times [2023-11-21 21:02:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:24,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561632838] [2023-11-21 21:02:24,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:24,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:24,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:24,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:24,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561632838] [2023-11-21 21:02:24,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561632838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:24,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:24,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:02:24,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148678535] [2023-11-21 21:02:24,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:24,800 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:02:24,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:24,801 INFO L85 PathProgramCache]: Analyzing trace with hash 330806, now seen corresponding path program 1 times [2023-11-21 21:02:24,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:24,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102745677] [2023-11-21 21:02:24,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:24,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:24,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:24,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:24,850 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:24,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:24,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:24,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:24,850 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 21:02:24,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:24,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:24,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:24,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2023-11-21 21:02:24,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:24,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:24,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:24,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:24,947 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:24,947 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 21:02:24,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:24,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:24,948 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:24,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 21:02:24,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:24,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-21 21:02:25,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:25,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:25,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:25,006 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:25,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 21:02:25,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:25,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-21 21:02:25,074 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 21:02:25,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:25,081 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:25,081 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:25,081 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:25,081 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:25,081 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:02:25,081 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:25,082 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:25,082 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:25,082 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2023-11-21 21:02:25,082 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:25,082 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:25,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:25,091 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:25,175 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:25,175 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:02:25,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:25,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:25,177 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:25,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:02:25,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:02:25,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:02:25,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:02:25,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:02:25,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:02:25,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:02:25,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:02:25,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-21 21:02:25,210 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:02:25,223 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 21:02:25,223 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 21:02:25,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:25,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:25,224 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:25,231 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:02:25,231 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 21:02:25,231 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:02:25,232 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-21 21:02:25,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-21 21:02:25,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:25,256 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 21:02:25,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:25,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:02:25,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:25,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:25,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:25,352 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-21 21:02:25,353 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 81 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2023-11-21 21:02:25,360 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 81 transitions. cyclomatic complexity: 27. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 62 states and 85 transitions. Complement of second has 4 states. [2023-11-21 21:02:25,360 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 [2023-11-21 21:02:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2023-11-21 21:02:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2023-11-21 21:02:25,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 3 letters. [2023-11-21 21:02:25,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:25,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 24 letters. Loop has 3 letters. [2023-11-21 21:02:25,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:25,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 6 letters. [2023-11-21 21:02:25,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:25,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 85 transitions. [2023-11-21 21:02:25,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 21:02:25,364 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 56 states and 77 transitions. [2023-11-21 21:02:25,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2023-11-21 21:02:25,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2023-11-21 21:02:25,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 77 transitions. [2023-11-21 21:02:25,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:25,365 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-11-21 21:02:25,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 77 transitions. [2023-11-21 21:02:25,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-21 21:02:25,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.375) internal successors, (77), 55 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2023-11-21 21:02:25,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-11-21 21:02:25,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:25,368 INFO L87 Difference]: Start difference. First operand 56 states and 77 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) [2023-11-21 21:02:25,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:25,445 INFO L93 Difference]: Finished difference Result 63 states and 85 transitions. [2023-11-21 21:02:25,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 85 transitions. [2023-11-21 21:02:25,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 21:02:25,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 63 states and 85 transitions. [2023-11-21 21:02:25,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2023-11-21 21:02:25,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2023-11-21 21:02:25,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 85 transitions. [2023-11-21 21:02:25,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:02:25,448 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 85 transitions. [2023-11-21 21:02:25,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 85 transitions. [2023-11-21 21:02:25,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2023-11-21 21:02:25,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 57 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:25,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-11-21 21:02:25,451 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-21 21:02:25,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:25,452 INFO L428 stractBuchiCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-21 21:02:25,452 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-21 21:02:25,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 79 transitions. [2023-11-21 21:02:25,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 21:02:25,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:25,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:25,454 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] [2023-11-21 21:02:25,454 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:02:25,454 INFO L748 eck$LassoCheckResult]: Stem: 2167#$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); 2130#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_~sb~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_~sb~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~nondet4#1, base2flt_#t~nondet5#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; 2131#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2161#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2152#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 2153#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2137#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2138#L47-3 assume !false; 2159#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 2144#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2146#$Ultimate##64 assume !(0 == base2flt_~m#1 % 4294967296); 2160#L76-5 assume !(4278190079 == base2flt_~m#1 % 4294967296);assume base2flt_#t~nondet4#1 % 4294967296 <= base2flt_~m#1 % 4294967296;assume base2flt_#t~nondet4#1 % 4294967296 <= 4278190079; 2162#L76-7 base2flt_~m#1 := base2flt_#t~nondet4#1;havoc base2flt_#t~nondet4#1; 2150#L77-5 assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~nondet5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296); 2126#L77-9 base2flt_~res~0#1 := base2flt_#t~nondet5#1;havoc base2flt_#t~nondet5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2127#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2128#base2flt_returnLabel#2 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 2129#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2120#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2121#base2flt_returnLabel#3 main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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~nondet4#1, base2flt_#t~nondet5#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; 2165#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2132#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 2133#L47-7 [2023-11-21 21:02:25,455 INFO L750 eck$LassoCheckResult]: Loop: 2133#L47-7 assume !false; 2124#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 2125#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 2133#L47-7 [2023-11-21 21:02:25,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:25,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1472036089, now seen corresponding path program 1 times [2023-11-21 21:02:25,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:25,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966661961] [2023-11-21 21:02:25,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:25,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:25,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:25,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:25,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966661961] [2023-11-21 21:02:25,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966661961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:25,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:25,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:02:25,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547544298] [2023-11-21 21:02:25,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:25,589 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:02:25,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:25,589 INFO L85 PathProgramCache]: Analyzing trace with hash 305047, now seen corresponding path program 1 times [2023-11-21 21:02:25,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:25,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283227088] [2023-11-21 21:02:25,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:25,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:25,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:25,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:25,634 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:25,635 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:25,635 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:25,635 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:25,635 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 21:02:25,635 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:25,635 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:25,635 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:25,636 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2023-11-21 21:02:25,636 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:25,636 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:25,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:25,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:25,769 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:25,769 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 21:02:25,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:25,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:25,772 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:25,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 21:02:25,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:25,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-21 21:02:25,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:25,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:25,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:25,827 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:25,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 21:02:25,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 21:02:25,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-21 21:02:25,877 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 21:02:25,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:25,886 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:02:25,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:02:25,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:02:25,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:02:25,886 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:02:25,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:25,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:02:25,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:02:25,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2023-11-21 21:02:25,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:02:25,887 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:02:25,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:25,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:02:25,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:02:25,999 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:02:25,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:26,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:26,002 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:26,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:02:26,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:02:26,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:02:26,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:02:26,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:02:26,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:02:26,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:02:26,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:02:26,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-21 21:02:26,034 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:02:26,036 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 21:02:26,036 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 21:02:26,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:26,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:26,040 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:26,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:02:26,042 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 21:02:26,042 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:02:26,042 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2023-11-21 21:02:26,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-21 21:02:26,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:26,063 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 21:02:26,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:26,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:02:26,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:26,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:26,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:26,162 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 [2023-11-21 21:02:26,163 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 79 transitions. cyclomatic complexity: 25 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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) [2023-11-21 21:02:26,169 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 79 transitions. cyclomatic complexity: 25. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 62 states and 83 transitions. Complement of second has 4 states. [2023-11-21 21:02:26,169 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 [2023-11-21 21:02:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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) [2023-11-21 21:02:26,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2023-11-21 21:02:26,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 22 letters. Loop has 3 letters. [2023-11-21 21:02:26,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:26,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 25 letters. Loop has 3 letters. [2023-11-21 21:02:26,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:26,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 22 letters. Loop has 6 letters. [2023-11-21 21:02:26,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:02:26,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 83 transitions. [2023-11-21 21:02:26,172 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 21:02:26,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 0 states and 0 transitions. [2023-11-21 21:02:26,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 21:02:26,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 21:02:26,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 21:02:26,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:26,173 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:02:26,173 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:02:26,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:26,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:02:26,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:02:26,174 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) [2023-11-21 21:02:26,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:26,175 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-21 21:02:26,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-21 21:02:26,175 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 21:02:26,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 21:02:26,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 21:02:26,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 21:02:26,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 21:02:26,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:26,176 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:02:26,176 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:02:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 21:02:26,177 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:02:26,177 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-21 21:02:26,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-21 21:02:26,177 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 21:02:26,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-21 21:02:26,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:02:26 BoogieIcfgContainer [2023-11-21 21:02:26,185 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 21:02:26,186 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:02:26,186 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:02:26,186 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:02:26,187 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:19" (3/4) ... [2023-11-21 21:02:26,189 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:02:26,190 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:02:26,191 INFO L158 Benchmark]: Toolchain (without parser) took 8115.64ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 118.0MB in the beginning and 56.8MB in the end (delta: 61.2MB). Peak memory consumption was 109.5MB. Max. memory is 16.1GB. [2023-11-21 21:02:26,191 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 157.3MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:26,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.87ms. Allocated memory is still 157.3MB. Free memory was 117.4MB in the beginning and 104.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 21:02:26,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.06ms. Allocated memory is still 157.3MB. Free memory was 104.1MB in the beginning and 101.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:02:26,192 INFO L158 Benchmark]: Boogie Preprocessor took 74.60ms. Allocated memory is still 157.3MB. Free memory was 101.6MB in the beginning and 98.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:02:26,193 INFO L158 Benchmark]: RCFGBuilder took 775.09ms. Allocated memory is still 157.3MB. Free memory was 98.6MB in the beginning and 72.3MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 21:02:26,193 INFO L158 Benchmark]: BuchiAutomizer took 6831.94ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 72.3MB in the beginning and 56.8MB in the end (delta: 15.5MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2023-11-21 21:02:26,194 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 203.4MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:26,196 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 157.3MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.87ms. Allocated memory is still 157.3MB. Free memory was 117.4MB in the beginning and 104.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.06ms. Allocated memory is still 157.3MB. Free memory was 104.1MB in the beginning and 101.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.60ms. Allocated memory is still 157.3MB. Free memory was 101.6MB in the beginning and 98.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 775.09ms. Allocated memory is still 157.3MB. Free memory was 98.6MB in the beginning and 72.3MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6831.94ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 72.3MB in the beginning and 56.8MB in the end (delta: 15.5MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 203.4MB. Free memory is still 56.8MB. 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 ((-2 * e) + 253) and consists of 4 locations. One deterministic module has affine ranking function ((2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function ((2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function ((2 * e) + 255) 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 6.7s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 4.9s. Construction of modules took 0.3s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 10. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 155 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, 635 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 628 mSDsluCounter, 1120 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 283 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 837 mSDtfsCounter, 309 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: 79ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-21 21:02:26,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:26,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-21 21:02:26,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:26,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:27,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2d3a6d-25a0-4118-8aa9-5256ca5b6ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE