./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:50:52,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:50:52,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 00:50:52,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:50:52,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:50:52,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:50:52,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:50:52,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:50:52,109 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:50:52,110 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:50:52,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:50:52,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:50:52,112 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:50:52,112 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 00:50:52,113 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 00:50:52,113 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 00:50:52,114 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 00:50:52,114 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 00:50:52,115 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 00:50:52,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:50:52,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 00:50:52,117 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:50:52,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:50:52,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:50:52,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:50:52,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 00:50:52,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 00:50:52,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 00:50:52,120 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:50:52,120 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:50:52,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:50:52,121 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 00:50:52,121 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:50:52,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:50:52,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:50:52,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:50:52,122 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:50:52,122 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 00:50:52,123 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_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2023-11-29 00:50:52,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:50:52,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:50:52,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:50:52,375 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:50:52,376 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:50:52,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2023-11-29 00:50:55,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:50:55,315 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:50:55,316 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2023-11-29 00:50:55,324 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/data/537a34fa5/20daf27ebc794bfab124ea839aa24096/FLAGb987c5bd3 [2023-11-29 00:50:55,334 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/data/537a34fa5/20daf27ebc794bfab124ea839aa24096 [2023-11-29 00:50:55,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:50:55,337 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:50:55,338 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:50:55,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:50:55,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:50:55,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f232ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55, skipping insertion in model container [2023-11-29 00:50:55,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,377 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:50:55,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:50:55,556 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:50:55,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:50:55,607 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:50:55,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55 WrapperNode [2023-11-29 00:50:55,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:50:55,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:50:55,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:50:55,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:50:55,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,662 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 11, calls inlined = 9, statements flattened = 371 [2023-11-29 00:50:55,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:50:55,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:50:55,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:50:55,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:50:55,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,695 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 00:50:55,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:50:55,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:50:55,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:50:55,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:50:55,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (1/1) ... [2023-11-29 00:50:55,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:55,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:55,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:55,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 00:50:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:50:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:50:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:50:55,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:50:55,871 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:50:55,874 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:50:56,303 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:50:56,316 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:50:56,316 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-29 00:50:56,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:50:56 BoogieIcfgContainer [2023-11-29 00:50:56,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:50:56,319 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 00:50:56,320 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 00:50:56,334 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 00:50:56,334 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:50:56,335 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 12:50:55" (1/3) ... [2023-11-29 00:50:56,336 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bc54ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:50:56, skipping insertion in model container [2023-11-29 00:50:56,336 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:50:56,337 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:50:55" (2/3) ... [2023-11-29 00:50:56,337 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bc54ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:50:56, skipping insertion in model container [2023-11-29 00:50:56,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:50:56,337 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:50:56" (3/3) ... [2023-11-29 00:50:56,338 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2023-11-29 00:50:56,393 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 00:50:56,393 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 00:50:56,393 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 00:50:56,393 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 00:50:56,393 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 00:50:56,394 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 00:50:56,394 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 00:50:56,394 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 00:50:56,399 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) [2023-11-29 00:50:56,421 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2023-11-29 00:50:56,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:50:56,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:50:56,426 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 00:50:56,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:50:56,427 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 00:50:56,428 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) [2023-11-29 00:50:56,435 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2023-11-29 00:50:56,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:50:56,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:50:56,436 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 00:50:56,436 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:50:56,443 INFO L748 eck$LassoCheckResult]: Stem: 24#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 32#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 68#L29true assume !(0 == base2flt_~m#1 % 4294967296); 87#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 48#L57-2true [2023-11-29 00:50:56,443 INFO L750 eck$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 [2023-11-29 00:50:56,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:56,448 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2023-11-29 00:50:56,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:56,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815085022] [2023-11-29 00:50:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:56,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:56,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:56,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:50:56,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815085022] [2023-11-29 00:50:56,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815085022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:50:56,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:50:56,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:50:56,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803730809] [2023-11-29 00:50:56,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:50:56,644 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 00:50:56,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:56,645 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2023-11-29 00:50:56,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:56,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191497957] [2023-11-29 00:50:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:56,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:56,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:50:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:56,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:50:56,720 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:56,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:56,721 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:56,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:56,721 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:50:56,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:56,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:56,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:56,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2023-11-29 00:50:56,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:56,722 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:56,735 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:56,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:56,857 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:56,857 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:50:56,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:56,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:56,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:56,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 00:50:56,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:50:56,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:56,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:50:56,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:56,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:56,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:56,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 00:50:56,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:50:56,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:56,923 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:50:56,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 00:50:56,928 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:56,928 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:56,928 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:56,928 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:56,928 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:50:56,928 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:56,928 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:56,928 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:56,929 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2023-11-29 00:50:56,929 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:56,929 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:56,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:56,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:57,041 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:57,046 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:50:57,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:57,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:57,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 00:50:57,056 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 [2023-11-29 00:50:57,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:50:57,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:50:57,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:50:57,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:50:57,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:50:57,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:50:57,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:50:57,075 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:50:57,080 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:50:57,080 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 00:50:57,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:57,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:57,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 00:50:57,112 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:50:57,112 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:50:57,112 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:50:57,113 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-29 00:50:57,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 00:50:57,119 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:50:57,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:57,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:50:57,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:57,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:50:57,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:57,218 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 [2023-11-29 00:50:57,221 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) [2023-11-29 00:50:57,303 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. [2023-11-29 00:50:57,305 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 [2023-11-29 00:50:57,310 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) [2023-11-29 00:50:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 352 transitions. [2023-11-29 00:50:57,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 352 transitions. Stem has 4 letters. Loop has 3 letters. [2023-11-29 00:50:57,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:57,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 352 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-29 00:50:57,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:57,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 352 transitions. Stem has 4 letters. Loop has 6 letters. [2023-11-29 00:50:57,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:57,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 532 transitions. [2023-11-29 00:50:57,326 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2023-11-29 00:50:57,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 109 states and 174 transitions. [2023-11-29 00:50:57,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2023-11-29 00:50:57,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2023-11-29 00:50:57,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 174 transitions. [2023-11-29 00:50:57,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:50:57,334 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 174 transitions. [2023-11-29 00:50:57,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 174 transitions. [2023-11-29 00:50:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 93. [2023-11-29 00:50:57,359 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) [2023-11-29 00:50:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 153 transitions. [2023-11-29 00:50:57,361 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 153 transitions. [2023-11-29 00:50:57,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:50:57,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:50:57,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:50:57,364 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) [2023-11-29 00:50:57,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:50:57,438 INFO L93 Difference]: Finished difference Result 45 states and 66 transitions. [2023-11-29 00:50:57,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 66 transitions. [2023-11-29 00:50:57,440 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2023-11-29 00:50:57,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 66 transitions. [2023-11-29 00:50:57,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2023-11-29 00:50:57,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2023-11-29 00:50:57,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 66 transitions. [2023-11-29 00:50:57,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:50:57,441 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-29 00:50:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 66 transitions. [2023-11-29 00:50:57,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-29 00:50:57,444 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) [2023-11-29 00:50:57,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2023-11-29 00:50:57,445 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-29 00:50:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:50:57,446 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-29 00:50:57,446 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 00:50:57,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 66 transitions. [2023-11-29 00:50:57,447 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2023-11-29 00:50:57,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:50:57,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:50:57,448 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:50:57,448 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:50:57,448 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_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~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 [2023-11-29 00:50:57,449 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 [2023-11-29 00:50:57,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:57,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335815, now seen corresponding path program 1 times [2023-11-29 00:50:57,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:57,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125906477] [2023-11-29 00:50:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:57,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:57,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:50:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:57,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:50:57,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:57,474 INFO L85 PathProgramCache]: Analyzing trace with hash 134251, now seen corresponding path program 1 times [2023-11-29 00:50:57,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:57,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634748620] [2023-11-29 00:50:57,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:57,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:57,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:50:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:57,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:50:57,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:57,485 INFO L85 PathProgramCache]: Analyzing trace with hash 631346469, now seen corresponding path program 1 times [2023-11-29 00:50:57,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:57,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72791762] [2023-11-29 00:50:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:57,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:57,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:50:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:57,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:50:57,546 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:57,547 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:57,547 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:57,547 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:57,547 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:50:57,547 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:57,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:57,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2023-11-29 00:50:57,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:57,548 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:57,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:57,557 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:57,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 00:50:57,696 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:57,696 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:50:57,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:57,698 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:57,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 00:50:57,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:50:57,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:57,720 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 00:50:57,720 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: [] [2023-11-29 00:50:57,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 00:50:57,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:57,724 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:57,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 00:50:57,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:50:57,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:57,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 00:50:57,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:57,747 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:57,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 00:50:57,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:50:57,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:57,776 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:50:57,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-29 00:50:57,780 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:57,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:57,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:57,781 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:57,781 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:50:57,781 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,781 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:57,781 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:57,781 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2023-11-29 00:50:57,781 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:57,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:57,782 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:57,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:57,902 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:57,902 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:50:57,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:57,908 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:57,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 00:50:57,911 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 [2023-11-29 00:50:57,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:50:57,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:50:57,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:50:57,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:50:57,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:50:57,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:50:57,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:50:57,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 00:50:57,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-29 00:50:57,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:57,935 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:57,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 00:50:57,939 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 [2023-11-29 00:50:57,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:50:57,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:50:57,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:50:57,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:50:57,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:50:57,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:50:57,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:50:57,955 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:50:57,958 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:50:57,958 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 00:50:57,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:57,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:57,959 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:57,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 00:50:57,962 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:50:57,963 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:50:57,963 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:50:57,963 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2023-11-29 00:50:57,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 00:50:57,967 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:50:57,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:57,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:50:57,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:58,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:50:58,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:58,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:58,059 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 [2023-11-29 00:50:58,059 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) [2023-11-29 00:50:58,085 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. [2023-11-29 00:50:58,085 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 [2023-11-29 00:50:58,086 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) [2023-11-29 00:50:58,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2023-11-29 00:50:58,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-29 00:50:58,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:58,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-29 00:50:58,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:58,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-29 00:50:58,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:58,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 131 transitions. [2023-11-29 00:50:58,089 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2023-11-29 00:50:58,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 81 states and 118 transitions. [2023-11-29 00:50:58,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2023-11-29 00:50:58,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2023-11-29 00:50:58,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 118 transitions. [2023-11-29 00:50:58,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:50:58,091 INFO L218 hiAutomatonCegarLoop]: Abstraction has 81 states and 118 transitions. [2023-11-29 00:50:58,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 118 transitions. [2023-11-29 00:50:58,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2023-11-29 00:50:58,095 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) [2023-11-29 00:50:58,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2023-11-29 00:50:58,095 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-29 00:50:58,095 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-29 00:50:58,095 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 00:50:58,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 70 transitions. [2023-11-29 00:50:58,096 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2023-11-29 00:50:58,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:50:58,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:50:58,097 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:50:58,097 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:50:58,097 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_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~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 [2023-11-29 00:50:58,097 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 [2023-11-29 00:50:58,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:58,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335841, now seen corresponding path program 1 times [2023-11-29 00:50:58,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:58,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862268094] [2023-11-29 00:50:58,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:58,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:58,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:50:58,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862268094] [2023-11-29 00:50:58,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862268094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:50:58,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:50:58,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:50:58,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223972844] [2023-11-29 00:50:58,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:50:58,162 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 00:50:58,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:58,163 INFO L85 PathProgramCache]: Analyzing trace with hash 160010, now seen corresponding path program 1 times [2023-11-29 00:50:58,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:58,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973888039] [2023-11-29 00:50:58,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:58,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:58,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:50:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:58,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:50:58,204 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:58,204 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:58,204 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:58,204 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:58,204 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:50:58,204 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,204 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:58,204 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:58,204 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2023-11-29 00:50:58,205 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:58,205 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:58,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:58,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:58,298 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:58,298 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:50:58,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:58,302 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:58,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 00:50:58,305 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:50:58,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:58,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 00:50:58,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:58,325 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:58,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 00:50:58,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:50:58,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:58,354 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:50:58,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-29 00:50:58,358 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:58,358 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:58,358 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:58,358 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:58,358 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:50:58,358 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,358 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:58,358 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:58,358 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2023-11-29 00:50:58,358 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:58,358 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:58,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:58,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:58,460 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:58,460 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:50:58,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:58,465 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:58,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 00:50:58,469 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 [2023-11-29 00:50:58,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:50:58,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:50:58,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:50:58,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:50:58,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:50:58,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:50:58,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:50:58,486 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:50:58,488 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:50:58,489 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 00:50:58,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:58,492 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:58,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 00:50:58,502 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:50:58,502 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:50:58,502 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:50:58,502 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-29 00:50:58,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 00:50:58,506 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:50:58,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:58,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:50:58,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:58,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:50:58,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:58,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:58,557 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 [2023-11-29 00:50:58,557 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) [2023-11-29 00:50:58,582 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. [2023-11-29 00:50:58,583 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 [2023-11-29 00:50:58,584 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) [2023-11-29 00:50:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2023-11-29 00:50:58,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-29 00:50:58,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:58,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-29 00:50:58,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:58,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-29 00:50:58,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:58,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2023-11-29 00:50:58,588 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2023-11-29 00:50:58,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 83 states and 121 transitions. [2023-11-29 00:50:58,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2023-11-29 00:50:58,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2023-11-29 00:50:58,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 121 transitions. [2023-11-29 00:50:58,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:50:58,590 INFO L218 hiAutomatonCegarLoop]: Abstraction has 83 states and 121 transitions. [2023-11-29 00:50:58,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 121 transitions. [2023-11-29 00:50:58,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 51. [2023-11-29 00:50:58,594 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) [2023-11-29 00:50:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2023-11-29 00:50:58,594 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 74 transitions. [2023-11-29 00:50:58,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:50:58,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:50:58,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:50:58,595 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) [2023-11-29 00:50:58,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:50:58,657 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2023-11-29 00:50:58,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2023-11-29 00:50:58,658 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2023-11-29 00:50:58,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 67 transitions. [2023-11-29 00:50:58,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2023-11-29 00:50:58,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2023-11-29 00:50:58,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2023-11-29 00:50:58,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:50:58,659 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2023-11-29 00:50:58,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2023-11-29 00:50:58,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2023-11-29 00:50:58,662 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) [2023-11-29 00:50:58,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2023-11-29 00:50:58,662 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2023-11-29 00:50:58,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:50:58,663 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2023-11-29 00:50:58,663 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 00:50:58,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2023-11-29 00:50:58,664 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2023-11-29 00:50:58,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:50:58,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:50:58,665 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:50:58,665 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:50:58,665 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_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~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 [2023-11-29 00:50:58,665 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 [2023-11-29 00:50:58,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:58,666 INFO L85 PathProgramCache]: Analyzing trace with hash 780922602, now seen corresponding path program 1 times [2023-11-29 00:50:58,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:58,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177544907] [2023-11-29 00:50:58,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:58,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:58,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:50:58,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177544907] [2023-11-29 00:50:58,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177544907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:50:58,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:50:58,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:50:58,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679086241] [2023-11-29 00:50:58,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:50:58,717 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 00:50:58,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:58,717 INFO L85 PathProgramCache]: Analyzing trace with hash 245408, now seen corresponding path program 1 times [2023-11-29 00:50:58,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:58,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161486333] [2023-11-29 00:50:58,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:58,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:58,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:50:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:58,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:50:58,757 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:58,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:58,757 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:58,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:58,757 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:50:58,757 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,757 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:58,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:58,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2023-11-29 00:50:58,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:58,758 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:58,759 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:58,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:58,845 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:58,845 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:50:58,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:58,847 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:58,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 00:50:58,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:50:58,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:58,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-29 00:50:58,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:58,873 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:58,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 00:50:58,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:50:58,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:58,901 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:50:58,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-29 00:50:58,905 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:58,905 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:58,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:58,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:58,905 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:50:58,905 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:58,905 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:58,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:58,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2023-11-29 00:50:58,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:58,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:58,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:58,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:59,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 00:50:59,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-29 00:50:59,042 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:59,042 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:50:59,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:59,043 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:59,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 00:50:59,049 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 [2023-11-29 00:50:59,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:50:59,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:50:59,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:50:59,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:50:59,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:50:59,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:50:59,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:50:59,066 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:50:59,069 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:50:59,069 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 00:50:59,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:59,070 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:59,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 00:50:59,077 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:50:59,077 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:50:59,077 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:50:59,078 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-29 00:50:59,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-29 00:50:59,082 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:50:59,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:59,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:50:59,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:59,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:50:59,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:59,140 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 [2023-11-29 00:50:59,140 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) [2023-11-29 00:50:59,162 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. [2023-11-29 00:50:59,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 00:50:59,164 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) [2023-11-29 00:50:59,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2023-11-29 00:50:59,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 3 letters. [2023-11-29 00:50:59,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:59,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 16 letters. Loop has 3 letters. [2023-11-29 00:50:59,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:59,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 6 letters. [2023-11-29 00:50:59,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:59,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 101 transitions. [2023-11-29 00:50:59,166 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2023-11-29 00:50:59,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 64 states and 88 transitions. [2023-11-29 00:50:59,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2023-11-29 00:50:59,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2023-11-29 00:50:59,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 88 transitions. [2023-11-29 00:50:59,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:50:59,168 INFO L218 hiAutomatonCegarLoop]: Abstraction has 64 states and 88 transitions. [2023-11-29 00:50:59,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 88 transitions. [2023-11-29 00:50:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2023-11-29 00:50:59,171 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) [2023-11-29 00:50:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2023-11-29 00:50:59,171 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2023-11-29 00:50:59,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:50:59,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:50:59,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:50:59,172 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) [2023-11-29 00:50:59,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:50:59,203 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2023-11-29 00:50:59,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2023-11-29 00:50:59,204 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2023-11-29 00:50:59,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 49 states and 67 transitions. [2023-11-29 00:50:59,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2023-11-29 00:50:59,205 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2023-11-29 00:50:59,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2023-11-29 00:50:59,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:50:59,205 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2023-11-29 00:50:59,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2023-11-29 00:50:59,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2023-11-29 00:50:59,208 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) [2023-11-29 00:50:59,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2023-11-29 00:50:59,209 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 66 transitions. [2023-11-29 00:50:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:50:59,210 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 66 transitions. [2023-11-29 00:50:59,210 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 00:50:59,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 66 transitions. [2023-11-29 00:50:59,211 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2023-11-29 00:50:59,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:50:59,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:50:59,211 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:50:59,211 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:50:59,212 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_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~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 [2023-11-29 00:50:59,212 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 [2023-11-29 00:50:59,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:59,212 INFO L85 PathProgramCache]: Analyzing trace with hash 136451054, now seen corresponding path program 1 times [2023-11-29 00:50:59,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:59,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714386990] [2023-11-29 00:50:59,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:59,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:59,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:50:59,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714386990] [2023-11-29 00:50:59,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714386990] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:50:59,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198910571] [2023-11-29 00:50:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:59,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:50:59,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:59,283 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:50:59,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 00:50:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:59,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:50:59,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:59,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:50:59,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:59,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198910571] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:50:59,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:50:59,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-29 00:50:59,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705434801] [2023-11-29 00:50:59,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:50:59,385 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 00:50:59,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:59,385 INFO L85 PathProgramCache]: Analyzing trace with hash 219649, now seen corresponding path program 1 times [2023-11-29 00:50:59,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:59,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961616596] [2023-11-29 00:50:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:59,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:59,390 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:50:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:50:59,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:50:59,424 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:59,424 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:59,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:59,425 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:59,425 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:50:59,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:59,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:59,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2023-11-29 00:50:59,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:59,425 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:59,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:59,433 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:59,537 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:59,538 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:50:59,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:59,539 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:59,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 00:50:59,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:50:59,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:59,560 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 00:50:59,560 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: [] [2023-11-29 00:50:59,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-29 00:50:59,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:59,564 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:59,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 00:50:59,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:50:59,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:59,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-29 00:50:59,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:59,586 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:59,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 00:50:59,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:50:59,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:50:59,609 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:50:59,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-29 00:50:59,613 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:50:59,613 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:50:59,613 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:50:59,613 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:50:59,613 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:50:59,613 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,613 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:50:59,613 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:50:59,613 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2023-11-29 00:50:59,613 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:50:59,613 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:50:59,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:59,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:50:59,724 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:50:59,724 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:50:59,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:59,725 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:59,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-29 00:50:59,728 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 [2023-11-29 00:50:59,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:50:59,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:50:59,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:50:59,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:50:59,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:50:59,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:50:59,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:50:59,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 00:50:59,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-29 00:50:59,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:59,746 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:59,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-29 00:50:59,753 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 [2023-11-29 00:50:59,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:50:59,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:50:59,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:50:59,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:50:59,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:50:59,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:50:59,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:50:59,767 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:50:59,770 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:50:59,770 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 00:50:59,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:50:59,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:59,771 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:50:59,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-29 00:50:59,777 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:50:59,777 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:50:59,777 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:50:59,777 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2023-11-29 00:50:59,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-29 00:50:59,780 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:50:59,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:59,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:50:59,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:50:59,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:50:59,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:59,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:50:59,853 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 [2023-11-29 00:50:59,853 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) [2023-11-29 00:50:59,874 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. [2023-11-29 00:50:59,874 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 [2023-11-29 00:50:59,875 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) [2023-11-29 00:50:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2023-11-29 00:50:59,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 3 letters. [2023-11-29 00:50:59,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:59,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 19 letters. Loop has 3 letters. [2023-11-29 00:50:59,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:59,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 6 letters. [2023-11-29 00:50:59,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:50:59,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2023-11-29 00:50:59,878 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2023-11-29 00:50:59,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 68 states and 92 transitions. [2023-11-29 00:50:59,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2023-11-29 00:50:59,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2023-11-29 00:50:59,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 92 transitions. [2023-11-29 00:50:59,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:50:59,879 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 92 transitions. [2023-11-29 00:50:59,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 92 transitions. [2023-11-29 00:50:59,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 51. [2023-11-29 00:50:59,882 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) [2023-11-29 00:50:59,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2023-11-29 00:50:59,882 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 70 transitions. [2023-11-29 00:50:59,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:50:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:50:59,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:50:59,883 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) [2023-11-29 00:50:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:50:59,981 INFO L93 Difference]: Finished difference Result 96 states and 130 transitions. [2023-11-29 00:50:59,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 130 transitions. [2023-11-29 00:50:59,982 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-29 00:50:59,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 90 states and 124 transitions. [2023-11-29 00:50:59,983 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2023-11-29 00:50:59,983 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2023-11-29 00:50:59,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 124 transitions. [2023-11-29 00:50:59,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:50:59,984 INFO L218 hiAutomatonCegarLoop]: Abstraction has 90 states and 124 transitions. [2023-11-29 00:50:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 124 transitions. [2023-11-29 00:50:59,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 59. [2023-11-29 00:50:59,987 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) [2023-11-29 00:50:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-11-29 00:50:59,987 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-29 00:50:59,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:50:59,988 INFO L428 stractBuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-29 00:50:59,988 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-29 00:50:59,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2023-11-29 00:50:59,989 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-29 00:50:59,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:50:59,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:50:59,990 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] [2023-11-29 00:50:59,990 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:50:59,990 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_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~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 [2023-11-29 00:50:59,991 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 [2023-11-29 00:50:59,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:59,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1276938091, now seen corresponding path program 1 times [2023-11-29 00:50:59,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:59,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17554569] [2023-11-29 00:50:59,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:59,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:51:00,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:00,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17554569] [2023-11-29 00:51:00,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17554569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:00,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:51:00,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:51:00,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844220467] [2023-11-29 00:51:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:00,031 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 00:51:00,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash 330806, now seen corresponding path program 1 times [2023-11-29 00:51:00,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:00,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79944050] [2023-11-29 00:51:00,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:00,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:51:00,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:51:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:51:00,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:51:00,067 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:51:00,068 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:51:00,068 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:51:00,068 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:51:00,068 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:51:00,068 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,068 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:51:00,068 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:51:00,068 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2023-11-29 00:51:00,068 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:51:00,068 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:51:00,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:51:00,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:51:00,155 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:51:00,155 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:51:00,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:00,156 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:51:00,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-29 00:51:00,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:51:00,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:51:00,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-29 00:51:00,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:00,175 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:51:00,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-29 00:51:00,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:51:00,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:51:00,200 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:51:00,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-29 00:51:00,203 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:51:00,203 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:51:00,203 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:51:00,203 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:51:00,203 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:51:00,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,203 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:51:00,203 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:51:00,203 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2023-11-29 00:51:00,203 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:51:00,204 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:51:00,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:51:00,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:51:00,286 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:51:00,286 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:51:00,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:00,287 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:51:00,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-29 00:51:00,290 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 [2023-11-29 00:51:00,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:51:00,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:51:00,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:51:00,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:51:00,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:51:00,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:51:00,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:51:00,305 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:51:00,307 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:51:00,307 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 00:51:00,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:00,308 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:51:00,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-29 00:51:00,309 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:51:00,310 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:51:00,310 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:51:00,310 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-29 00:51:00,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-29 00:51:00,313 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:51:00,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:00,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:51:00,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:00,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:51:00,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:00,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:51:00,384 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 [2023-11-29 00:51:00,384 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) [2023-11-29 00:51:00,391 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. [2023-11-29 00:51:00,391 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 [2023-11-29 00:51:00,392 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) [2023-11-29 00:51:00,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2023-11-29 00:51:00,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 3 letters. [2023-11-29 00:51:00,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:51:00,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 24 letters. Loop has 3 letters. [2023-11-29 00:51:00,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:51:00,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 6 letters. [2023-11-29 00:51:00,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:51:00,393 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 85 transitions. [2023-11-29 00:51:00,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 00:51:00,394 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 56 states and 77 transitions. [2023-11-29 00:51:00,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2023-11-29 00:51:00,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2023-11-29 00:51:00,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 77 transitions. [2023-11-29 00:51:00,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:51:00,395 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-11-29 00:51:00,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 77 transitions. [2023-11-29 00:51:00,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-29 00:51:00,397 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) [2023-11-29 00:51:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2023-11-29 00:51:00,398 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-11-29 00:51:00,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:00,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:51:00,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:51:00,399 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) [2023-11-29 00:51:00,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:00,457 INFO L93 Difference]: Finished difference Result 63 states and 85 transitions. [2023-11-29 00:51:00,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 85 transitions. [2023-11-29 00:51:00,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 00:51:00,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 63 states and 85 transitions. [2023-11-29 00:51:00,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2023-11-29 00:51:00,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2023-11-29 00:51:00,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 85 transitions. [2023-11-29 00:51:00,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:51:00,459 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 85 transitions. [2023-11-29 00:51:00,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 85 transitions. [2023-11-29 00:51:00,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2023-11-29 00:51:00,461 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) [2023-11-29 00:51:00,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-11-29 00:51:00,461 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-29 00:51:00,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:51:00,465 INFO L428 stractBuchiCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-29 00:51:00,465 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-29 00:51:00,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 79 transitions. [2023-11-29 00:51:00,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 00:51:00,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:51:00,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:51:00,466 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] [2023-11-29 00:51:00,466 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:51:00,467 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_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~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 [2023-11-29 00:51:00,467 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 [2023-11-29 00:51:00,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:00,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1472036089, now seen corresponding path program 1 times [2023-11-29 00:51:00,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:00,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365202714] [2023-11-29 00:51:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:00,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:00,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-29 00:51:00,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-29 00:51:00,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-29 00:51:00,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:51:00,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:00,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365202714] [2023-11-29 00:51:00,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365202714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:00,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:51:00,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:51:00,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907016426] [2023-11-29 00:51:00,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:00,577 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 00:51:00,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:00,578 INFO L85 PathProgramCache]: Analyzing trace with hash 305047, now seen corresponding path program 1 times [2023-11-29 00:51:00,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:00,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576702470] [2023-11-29 00:51:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:00,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:51:00,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:51:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:51:00,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:51:00,612 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:51:00,612 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:51:00,612 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:51:00,612 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:51:00,612 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:51:00,613 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,613 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:51:00,613 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:51:00,613 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2023-11-29 00:51:00,613 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:51:00,613 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:51:00,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:51:00,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:51:00,717 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:51:00,717 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:51:00,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:00,718 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:51:00,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-29 00:51:00,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:51:00,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:51:00,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-29 00:51:00,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:00,736 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:51:00,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-29 00:51:00,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:51:00,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:51:00,763 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:51:00,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-29 00:51:00,767 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:51:00,767 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:51:00,767 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:51:00,767 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:51:00,767 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:51:00,767 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,767 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:51:00,767 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:51:00,767 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2023-11-29 00:51:00,767 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:51:00,767 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:51:00,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:51:00,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:51:00,867 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:51:00,868 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:51:00,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:00,869 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:51:00,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-29 00:51:00,871 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 [2023-11-29 00:51:00,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:51:00,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:51:00,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:51:00,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:51:00,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:51:00,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:51:00,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:51:00,885 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:51:00,887 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:51:00,887 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 00:51:00,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:51:00,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:00,888 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:51:00,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-29 00:51:00,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:51:00,890 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:51:00,890 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:51:00,890 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2023-11-29 00:51:00,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-29 00:51:00,894 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:51:00,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:00,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:51:00,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:00,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:51:00,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:51:00,977 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 [2023-11-29 00:51:00,977 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) [2023-11-29 00:51:00,982 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. [2023-11-29 00:51:00,982 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 [2023-11-29 00:51:00,983 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) [2023-11-29 00:51:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2023-11-29 00:51:00,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 22 letters. Loop has 3 letters. [2023-11-29 00:51:00,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:51:00,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 25 letters. Loop has 3 letters. [2023-11-29 00:51:00,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:51:00,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 22 letters. Loop has 6 letters. [2023-11-29 00:51:00,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:51:00,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 83 transitions. [2023-11-29 00:51:00,985 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 00:51:00,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 0 states and 0 transitions. [2023-11-29 00:51:00,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 00:51:00,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 00:51:00,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 00:51:00,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:51:00,986 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:51:00,986 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:51:00,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:00,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:51:00,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:51:00,986 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) [2023-11-29 00:51:00,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:00,986 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-29 00:51:00,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-29 00:51:00,987 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 00:51:00,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 00:51:00,987 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 00:51:00,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 00:51:00,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 00:51:00,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:51:00,987 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:51:00,987 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:51:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:51:00,988 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:51:00,988 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-29 00:51:00,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 00:51:00,988 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 00:51:00,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 00:51:00,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 12:51:00 BoogieIcfgContainer [2023-11-29 00:51:00,995 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 00:51:00,996 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:51:00,996 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:51:00,996 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:51:00,996 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:50:56" (3/4) ... [2023-11-29 00:51:00,997 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:51:00,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:51:00,999 INFO L158 Benchmark]: Toolchain (without parser) took 5661.19ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 126.4MB in the beginning and 130.5MB in the end (delta: -4.1MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-11-29 00:51:00,999 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory was 66.3MB in the beginning and 66.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:51:00,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.05ms. Allocated memory is still 172.0MB. Free memory was 125.9MB in the beginning and 112.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 00:51:00,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.19ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 110.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:51:01,000 INFO L158 Benchmark]: Boogie Preprocessor took 55.98ms. Allocated memory is still 172.0MB. Free memory was 110.2MB in the beginning and 107.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:51:01,000 INFO L158 Benchmark]: RCFGBuilder took 598.64ms. Allocated memory is still 172.0MB. Free memory was 107.0MB in the beginning and 80.8MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-29 00:51:01,000 INFO L158 Benchmark]: BuchiAutomizer took 4675.64ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 80.8MB in the beginning and 130.5MB in the end (delta: -49.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:51:01,000 INFO L158 Benchmark]: Witness Printer took 2.62ms. Allocated memory is still 207.6MB. Free memory is still 130.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:51:01,002 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory was 66.3MB in the beginning and 66.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.05ms. Allocated memory is still 172.0MB. Free memory was 125.9MB in the beginning and 112.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.19ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 110.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.98ms. Allocated memory is still 172.0MB. Free memory was 110.2MB in the beginning and 107.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 598.64ms. Allocated memory is still 172.0MB. Free memory was 107.0MB in the beginning and 80.8MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4675.64ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 80.8MB in the beginning and 130.5MB in the end (delta: -49.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.62ms. Allocated memory is still 207.6MB. Free memory is still 130.5MB. 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 4.6s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 10. Automata minimization 0.0s 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, 0.3s 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: 66ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 00:51:01,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-11-29 00:51:01,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 00:51:01,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89732613-0b1f-45d1-83fd-f7a9dc3670c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE