./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:45:22,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:45:22,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 22:45:22,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:45:22,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:45:22,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 22:45:22,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:45:22,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:45:22,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:45:22,559 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:45:22,560 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:45:22,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:45:22,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:45:22,564 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:45:22,565 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 22:45:22,565 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 22:45:22,565 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 22:45:22,566 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 22:45:22,566 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 22:45:22,566 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 22:45:22,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:45:22,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 22:45:22,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:45:22,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:45:22,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:45:22,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:45:22,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 22:45:22,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 22:45:22,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 22:45:22,570 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:45:22,570 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:45:22,570 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:45:22,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:45:22,570 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 22:45:22,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:45:22,571 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:45:22,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:45:22,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:45:22,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:45:22,572 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 22:45:22,572 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a [2024-11-10 22:45:22,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:45:22,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:45:22,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:45:22,854 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:45:22,855 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:45:22,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2024-11-10 22:45:24,364 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:45:24,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:45:24,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2024-11-10 22:45:24,582 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae5ab4aa/672e08784c0a4758862d6456627086b6/FLAG18cdaab80 [2024-11-10 22:45:24,942 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae5ab4aa/672e08784c0a4758862d6456627086b6 [2024-11-10 22:45:24,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:45:24,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:45:24,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:45:24,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:45:24,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:45:24,953 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:45:24" (1/1) ... [2024-11-10 22:45:24,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324baf80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:24, skipping insertion in model container [2024-11-10 22:45:24,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:45:24" (1/1) ... [2024-11-10 22:45:24,979 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:45:25,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:45:25,195 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:45:25,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:45:25,246 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:45:25,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25 WrapperNode [2024-11-10 22:45:25,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:45:25,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:45:25,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:45:25,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:45:25,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,294 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 14, calls inlined = 21, statements flattened = 431 [2024-11-10 22:45:25,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:45:25,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:45:25,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:45:25,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:45:25,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,335 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 22:45:25,335 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,348 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:45:25,363 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:45:25,363 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:45:25,364 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:45:25,364 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (1/1) ... [2024-11-10 22:45:25,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:25,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:25,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:25,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-10 22:45:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:45:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:45:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:45:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:45:25,549 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:45:25,551 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:45:26,159 INFO L? ?]: Removed 143 outVars from TransFormulas that were not future-live. [2024-11-10 22:45:26,160 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:45:26,214 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:45:26,214 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-10 22:45:26,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:45:26 BoogieIcfgContainer [2024-11-10 22:45:26,215 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:45:26,216 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 22:45:26,216 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 22:45:26,220 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 22:45:26,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:45:26,221 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 10:45:24" (1/3) ... [2024-11-10 22:45:26,222 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@632eb689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:45:26, skipping insertion in model container [2024-11-10 22:45:26,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:45:26,222 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:25" (2/3) ... [2024-11-10 22:45:26,223 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@632eb689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:45:26, skipping insertion in model container [2024-11-10 22:45:26,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:45:26,223 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:45:26" (3/3) ... [2024-11-10 22:45:26,224 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2024-11-10 22:45:26,277 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 22:45:26,278 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 22:45:26,278 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 22:45:26,278 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 22:45:26,278 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 22:45:26,279 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 22:45:26,279 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 22:45:26,279 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 22:45:26,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 155 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 154 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:26,307 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 24 [2024-11-10 22:45:26,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:26,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:26,314 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-10 22:45:26,314 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 22:45:26,314 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 22:45:26,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 155 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 154 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:26,323 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 24 [2024-11-10 22:45:26,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:26,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:26,324 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-10 22:45:26,324 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 22:45:26,330 INFO L745 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 34#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 106#L29-2true assume !(0 == base2flt_~m#1 % 4294967296); 92#L35-2true assume base2flt_~m#1 % 4294967296 < 16777216; 118#L37-4true [2024-11-10 22:45:26,331 INFO L747 eck$LassoCheckResult]: Loop: 118#L37-4true assume true; 90#L37-5true assume !false;assume true; 143#L39-2true assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 56#L47-2true assume base2flt_~m#1 % 4294967296 < 16777216; 118#L37-4true [2024-11-10 22:45:26,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:26,335 INFO L85 PathProgramCache]: Analyzing trace with hash 10681020, now seen corresponding path program 1 times [2024-11-10 22:45:26,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:26,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540262896] [2024-11-10 22:45:26,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:26,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:26,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:45:26,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540262896] [2024-11-10 22:45:26,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540262896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:45:26,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:45:26,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:45:26,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301508293] [2024-11-10 22:45:26,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:45:26,613 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-10 22:45:26,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:26,614 INFO L85 PathProgramCache]: Analyzing trace with hash 9972890, now seen corresponding path program 1 times [2024-11-10 22:45:26,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:26,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11080714] [2024-11-10 22:45:26,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:26,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:26,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:26,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:26,704 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:26,704 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:26,704 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:26,705 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:26,705 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:45:26,705 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:26,705 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:26,705 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:26,705 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2024-11-10 22:45:26,706 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:26,706 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:26,719 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:26,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:26,859 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:26,860 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:45:26,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:26,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:26,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:26,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-10 22:45:26,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:26,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:26,894 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:45:26,894 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 22:45:26,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-10 22:45:26,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:26,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:26,900 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:26,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-10 22:45:26,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:26,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:26,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:26,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:26,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:26,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:26,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-10 22:45:26,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:45:26,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:26,958 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:45:26,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-10 22:45:26,964 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:26,964 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:26,964 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:26,965 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:26,965 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:45:26,965 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:26,965 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:26,965 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:26,965 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2024-11-10 22:45:26,965 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:26,965 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:26,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:26,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:27,105 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:27,110 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:45:27,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:27,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:27,113 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:27,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-10 22:45:27,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 22:45:27,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:27,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:27,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:27,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:27,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:27,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:27,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:27,140 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:45:27,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-10 22:45:27,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:27,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:27,158 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:27,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-10 22:45:27,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 22:45:27,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:27,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:27,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:27,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:27,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:27,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:27,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:27,181 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:45:27,184 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:45:27,184 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:45:27,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:27,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:27,189 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:27,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-10 22:45:27,191 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:45:27,192 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:45:27,192 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:45:27,192 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-11-10 22:45:27,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-10 22:45:27,210 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:45:27,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:27,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:45:27,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:27,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:45:27,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:27,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:27,351 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-10 22:45:27,353 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 155 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 154 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:27,505 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 155 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 154 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 460 states and 678 transitions. Complement of second has 6 states. [2024-11-10 22:45:27,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-10 22:45:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:27,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2024-11-10 22:45:27,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 446 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-10 22:45:27,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:27,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 446 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-10 22:45:27,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:27,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 446 transitions. Stem has 4 letters. Loop has 8 letters. [2024-11-10 22:45:27,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:27,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 460 states and 678 transitions. [2024-11-10 22:45:27,530 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 36 [2024-11-10 22:45:27,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 460 states to 103 states and 144 transitions. [2024-11-10 22:45:27,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2024-11-10 22:45:27,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2024-11-10 22:45:27,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 144 transitions. [2024-11-10 22:45:27,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:27,540 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 144 transitions. [2024-11-10 22:45:27,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 144 transitions. [2024-11-10 22:45:27,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 80. [2024-11-10 22:45:27,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.45) internal successors, (116), 79 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 116 transitions. [2024-11-10 22:45:27,566 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 116 transitions. [2024-11-10 22:45:27,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:45:27,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:45:27,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:45:27,569 INFO L87 Difference]: Start difference. First operand 80 states and 116 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:27,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 22:45:27,626 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2024-11-10 22:45:27,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2024-11-10 22:45:27,627 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2024-11-10 22:45:27,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 48 transitions. [2024-11-10 22:45:27,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2024-11-10 22:45:27,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2024-11-10 22:45:27,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 48 transitions. [2024-11-10 22:45:27,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 22:45:27,628 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 48 transitions. [2024-11-10 22:45:27,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 48 transitions. [2024-11-10 22:45:27,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-10 22:45:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2024-11-10 22:45:27,631 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 48 transitions. [2024-11-10 22:45:27,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:45:27,632 INFO L425 stractBuchiCegarLoop]: Abstraction has 37 states and 48 transitions. [2024-11-10 22:45:27,633 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 22:45:27,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 48 transitions. [2024-11-10 22:45:27,634 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2024-11-10 22:45:27,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:27,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:27,634 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:27,634 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 22:45:27,636 INFO L745 eck$LassoCheckResult]: Stem: 807#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 808#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 815#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 798#L31-2 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 799#L80-2 assume true;main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 809#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 791#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 792#L37-2 [2024-11-10 22:45:27,637 INFO L747 eck$LassoCheckResult]: Loop: 792#L37-2 assume true; 806#L37-3 assume !false;assume true; 812#L39-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 813#L47-1 assume base2flt_~m#1 % 4294967296 < 16777216; 792#L37-2 [2024-11-10 22:45:27,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:27,637 INFO L85 PathProgramCache]: Analyzing trace with hash 368684916, now seen corresponding path program 1 times [2024-11-10 22:45:27,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:27,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749942589] [2024-11-10 22:45:27,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:27,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:27,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:27,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:27,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:27,674 INFO L85 PathProgramCache]: Analyzing trace with hash 8372122, now seen corresponding path program 1 times [2024-11-10 22:45:27,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:27,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225115741] [2024-11-10 22:45:27,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:27,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:27,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:27,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:27,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:27,687 INFO L85 PathProgramCache]: Analyzing trace with hash 442400141, now seen corresponding path program 1 times [2024-11-10 22:45:27,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:27,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270325484] [2024-11-10 22:45:27,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:27,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:27,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:27,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:27,754 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:27,754 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:27,754 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:27,754 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:27,754 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:45:27,755 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:27,755 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:27,755 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:27,755 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2024-11-10 22:45:27,755 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:27,755 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:27,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:27,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:27,872 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:27,872 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:45:27,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:27,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:27,877 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:27,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-10 22:45:27,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:27,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:27,908 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:45:27,909 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 22:45:27,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-10 22:45:27,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:27,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:27,917 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:27,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-10 22:45:27,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:27,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:27,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:27,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:27,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:27,952 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:27,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-10 22:45:27,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:45:27,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:27,980 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:45:27,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:27,985 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:27,985 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:27,985 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:27,985 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:27,985 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:45:27,985 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:27,985 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:27,985 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:27,986 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2024-11-10 22:45:27,986 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:27,986 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:27,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:27,993 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:28,096 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:28,097 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:45:28,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:28,099 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:28,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-10 22:45:28,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 22:45:28,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:28,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:28,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:28,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:28,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:28,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:28,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:28,119 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:45:28,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-10 22:45:28,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:28,136 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:28,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-10 22:45:28,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 22:45:28,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:28,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:28,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:28,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:28,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:28,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:28,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:28,156 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:45:28,159 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:45:28,159 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:45:28,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:28,161 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:28,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-10 22:45:28,164 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:45:28,164 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:45:28,165 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:45:28,165 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-11-10 22:45:28,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:28,179 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:45:28,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-10 22:45:28,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:28,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:28,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:45:28,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:28,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:45:28,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:28,334 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-10 22:45:28,334 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 48 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:28,371 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 48 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 70 states and 89 transitions. Complement of second has 5 states. [2024-11-10 22:45:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-10 22:45:28,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:28,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-10 22:45:28,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-10 22:45:28,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:28,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-10 22:45:28,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:28,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 7 letters. Loop has 8 letters. [2024-11-10 22:45:28,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:28,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 89 transitions. [2024-11-10 22:45:28,374 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20 [2024-11-10 22:45:28,375 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 62 states and 79 transitions. [2024-11-10 22:45:28,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2024-11-10 22:45:28,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2024-11-10 22:45:28,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 79 transitions. [2024-11-10 22:45:28,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:28,379 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 79 transitions. [2024-11-10 22:45:28,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 79 transitions. [2024-11-10 22:45:28,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 41. [2024-11-10 22:45:28,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 40 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2024-11-10 22:45:28,384 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 53 transitions. [2024-11-10 22:45:28,384 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 53 transitions. [2024-11-10 22:45:28,384 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 22:45:28,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 53 transitions. [2024-11-10 22:45:28,385 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2024-11-10 22:45:28,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:28,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:28,385 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:28,385 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 22:45:28,386 INFO L745 eck$LassoCheckResult]: Stem: 970#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 971#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 979#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 961#L31-2 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 962#L80-2 assume true;main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 972#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 951#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 953#L57-2 [2024-11-10 22:45:28,386 INFO L747 eck$LassoCheckResult]: Loop: 953#L57-2 assume true; 974#L57-3 assume !false;assume true; 954#L59-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 955#L64-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 953#L57-2 [2024-11-10 22:45:28,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:28,386 INFO L85 PathProgramCache]: Analyzing trace with hash 368684917, now seen corresponding path program 1 times [2024-11-10 22:45:28,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:28,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678463794] [2024-11-10 22:45:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:28,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:28,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:28,415 INFO L85 PathProgramCache]: Analyzing trace with hash 8833854, now seen corresponding path program 1 times [2024-11-10 22:45:28,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:28,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771477127] [2024-11-10 22:45:28,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:28,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:28,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:28,436 INFO L85 PathProgramCache]: Analyzing trace with hash 443785394, now seen corresponding path program 1 times [2024-11-10 22:45:28,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:28,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168874203] [2024-11-10 22:45:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:28,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:28,506 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:28,506 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:28,506 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:28,507 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:28,507 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:45:28,507 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,507 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:28,507 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:28,507 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2024-11-10 22:45:28,507 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:28,507 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:28,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:28,516 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:28,606 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:28,607 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:45:28,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:28,609 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:28,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-10 22:45:28,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:28,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:28,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-10 22:45:28,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:28,636 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:28,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-10 22:45:28,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:45:28,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:28,667 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:45:28,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-10 22:45:28,672 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:28,672 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:28,672 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:28,672 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:28,672 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:45:28,672 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,672 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:28,672 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:28,672 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2024-11-10 22:45:28,672 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:28,672 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:28,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:28,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:28,761 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:28,761 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:45:28,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:28,763 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:28,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-10 22:45:28,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 22:45:28,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:28,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:28,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:28,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:28,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:28,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:28,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:28,778 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:45:28,780 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:45:28,780 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:45:28,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:28,783 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:28,784 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:45:28,784 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:45:28,785 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:45:28,785 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-11-10 22:45:28,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-10 22:45:28,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:28,797 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:45:28,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:28,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:45:28,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:28,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:45:28,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:28,848 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-10 22:45:28,848 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 53 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:28,877 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 53 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 73 states and 93 transitions. Complement of second has 5 states. [2024-11-10 22:45:28,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-10 22:45:28,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:28,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-11-10 22:45:28,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-10 22:45:28,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:28,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-10 22:45:28,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:28,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 7 letters. Loop has 8 letters. [2024-11-10 22:45:28,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:28,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 93 transitions. [2024-11-10 22:45:28,882 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2024-11-10 22:45:28,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 65 states and 83 transitions. [2024-11-10 22:45:28,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2024-11-10 22:45:28,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2024-11-10 22:45:28,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 83 transitions. [2024-11-10 22:45:28,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:28,886 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 83 transitions. [2024-11-10 22:45:28,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 83 transitions. [2024-11-10 22:45:28,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 45. [2024-11-10 22:45:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.288888888888889) internal successors, (58), 44 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:28,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2024-11-10 22:45:28,889 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 58 transitions. [2024-11-10 22:45:28,889 INFO L425 stractBuchiCegarLoop]: Abstraction has 45 states and 58 transitions. [2024-11-10 22:45:28,889 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-10 22:45:28,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 58 transitions. [2024-11-10 22:45:28,892 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-10 22:45:28,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:28,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:28,893 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:28,893 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 22:45:28,893 INFO L745 eck$LassoCheckResult]: Stem: 1138#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 1139#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1149#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1126#L31-2 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 1127#L80-2 assume true;main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1140#L29-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1125#L31-1 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 1128#L80-1 assume true;main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1129#L29 assume !(0 == base2flt_~m#1 % 4294967296); 1131#L35 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1132#L57 [2024-11-10 22:45:28,893 INFO L747 eck$LassoCheckResult]: Loop: 1132#L57 assume true; 1130#L57-1 assume !false;assume true; 1113#L59 assume base2flt_~m#1 % 4294967296 >= 33554432; 1114#L64 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 1132#L57 [2024-11-10 22:45:28,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:28,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1258903049, now seen corresponding path program 1 times [2024-11-10 22:45:28,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:28,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290762262] [2024-11-10 22:45:28,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:28,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:28,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash 7233086, now seen corresponding path program 1 times [2024-11-10 22:45:28,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:28,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839593953] [2024-11-10 22:45:28,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:28,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:28,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:28,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1531801670, now seen corresponding path program 1 times [2024-11-10 22:45:28,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:28,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175447095] [2024-11-10 22:45:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:28,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:28,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:28,983 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:28,983 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:28,983 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:28,983 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:28,984 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:45:28,984 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:28,984 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:28,984 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:28,984 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2024-11-10 22:45:28,984 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:28,984 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:28,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:28,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:29,078 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:29,080 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:45:29,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:29,082 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:29,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-10 22:45:29,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:29,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:29,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:29,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:29,133 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:29,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-10 22:45:29,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:45:29,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:29,166 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:45:29,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:29,171 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:29,171 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:29,171 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:29,171 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:29,171 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:45:29,171 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,171 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:29,171 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:29,171 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2024-11-10 22:45:29,172 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:29,172 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:29,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:29,182 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:29,254 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:29,254 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:45:29,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:29,256 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:29,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-10 22:45:29,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 22:45:29,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:29,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:29,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:29,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:29,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:29,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:29,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:29,282 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:45:29,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:29,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:29,300 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:29,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-10 22:45:29,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 22:45:29,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:29,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:29,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:29,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:29,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:29,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:29,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:29,321 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:45:29,323 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:45:29,323 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:45:29,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:29,325 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:29,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-10 22:45:29,327 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:45:29,327 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:45:29,328 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:45:29,328 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-11-10 22:45:29,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-10 22:45:29,344 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:45:29,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:29,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:45:29,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:29,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:45:29,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:29,413 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-10 22:45:29,413 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 58 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:29,425 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 58 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 49 states and 63 transitions. Complement of second has 4 states. [2024-11-10 22:45:29,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-10 22:45:29,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:29,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-11-10 22:45:29,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 48 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-10 22:45:29,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:29,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 48 transitions. Stem has 14 letters. Loop has 4 letters. [2024-11-10 22:45:29,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:29,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 48 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-10 22:45:29,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:29,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 63 transitions. [2024-11-10 22:45:29,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-10 22:45:29,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 41 states and 53 transitions. [2024-11-10 22:45:29,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2024-11-10 22:45:29,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2024-11-10 22:45:29,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 53 transitions. [2024-11-10 22:45:29,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:29,432 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 53 transitions. [2024-11-10 22:45:29,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 53 transitions. [2024-11-10 22:45:29,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-10 22:45:29,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 40 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:29,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2024-11-10 22:45:29,437 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 53 transitions. [2024-11-10 22:45:29,438 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 53 transitions. [2024-11-10 22:45:29,438 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-10 22:45:29,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 53 transitions. [2024-11-10 22:45:29,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-10 22:45:29,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:29,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:29,439 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:29,439 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 22:45:29,439 INFO L745 eck$LassoCheckResult]: Stem: 1288#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 1289#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1299#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1278#L31-2 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 1279#L80-2 assume true;main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1290#L29-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1277#L31-1 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 1280#L80-1 assume true;main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1281#L29 assume !(0 == base2flt_~m#1 % 4294967296); 1282#L35 assume base2flt_~m#1 % 4294967296 < 16777216; 1263#L37 [2024-11-10 22:45:29,439 INFO L747 eck$LassoCheckResult]: Loop: 1263#L37 assume true; 1298#L37-1 assume !false;assume true; 1283#L39 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1262#L47 assume base2flt_~m#1 % 4294967296 < 16777216; 1263#L37 [2024-11-10 22:45:29,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:29,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1258903048, now seen corresponding path program 1 times [2024-11-10 22:45:29,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:29,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801849768] [2024-11-10 22:45:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:29,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:29,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:29,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:29,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:29,468 INFO L85 PathProgramCache]: Analyzing trace with hash 6771354, now seen corresponding path program 1 times [2024-11-10 22:45:29,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:29,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158615078] [2024-11-10 22:45:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:29,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:29,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:29,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:29,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:29,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1530416417, now seen corresponding path program 1 times [2024-11-10 22:45:29,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:29,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612593519] [2024-11-10 22:45:29,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:29,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:29,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:29,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:29,517 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:29,517 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:29,517 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:29,517 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:29,517 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:45:29,517 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,517 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:29,517 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:29,517 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2024-11-10 22:45:29,517 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:29,517 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:29,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:29,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:29,596 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:29,596 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:45:29,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:29,598 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:29,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-10 22:45:29,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:29,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:29,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:29,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:29,622 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:29,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-10 22:45:29,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:45:29,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:29,649 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:45:29,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:29,654 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:29,654 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:29,654 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:29,654 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:29,654 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:45:29,654 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,654 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:29,654 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:29,654 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2024-11-10 22:45:29,654 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:29,654 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:29,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:29,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:29,766 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:29,766 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:45:29,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:29,768 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:29,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-10 22:45:29,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 22:45:29,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:29,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:29,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:29,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:29,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:29,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:29,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:29,782 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:45:29,783 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:45:29,783 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:45:29,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:29,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:29,785 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:45:29,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-10 22:45:29,787 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:45:29,787 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:45:29,787 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:45:29,787 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-11-10 22:45:29,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:29,799 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:45:29,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:29,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:45:29,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:29,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:45:29,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:29,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:29,870 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-10 22:45:29,870 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 53 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:29,878 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 53 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 46 states and 59 transitions. Complement of second has 4 states. [2024-11-10 22:45:29,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-10 22:45:29,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:29,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-10 22:45:29,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-10 22:45:29,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:29,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 14 letters. Loop has 4 letters. [2024-11-10 22:45:29,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:29,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-10 22:45:29,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:29,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2024-11-10 22:45:29,881 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 22:45:29,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 0 states and 0 transitions. [2024-11-10 22:45:29,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-10 22:45:29,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-10 22:45:29,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-10 22:45:29,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 22:45:29,882 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:45:29,882 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:45:29,882 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:45:29,883 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-10 22:45:29,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-10 22:45:29,883 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 22:45:29,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-10 22:45:29,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 10:45:29 BoogieIcfgContainer [2024-11-10 22:45:29,891 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 22:45:29,891 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:45:29,891 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:45:29,891 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:45:29,892 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:45:26" (3/4) ... [2024-11-10 22:45:29,894 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 22:45:29,895 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:45:29,896 INFO L158 Benchmark]: Toolchain (without parser) took 4949.29ms. Allocated memory was 161.5MB in the beginning and 220.2MB in the end (delta: 58.7MB). Free memory was 105.5MB in the beginning and 69.9MB in the end (delta: 35.7MB). Peak memory consumption was 93.2MB. Max. memory is 16.1GB. [2024-11-10 22:45:29,896 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 161.5MB. Free memory was 122.1MB in the beginning and 121.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:45:29,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.61ms. Allocated memory is still 161.5MB. Free memory was 105.1MB in the beginning and 90.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-10 22:45:29,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.11ms. Allocated memory is still 161.5MB. Free memory was 90.4MB in the beginning and 87.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:45:29,897 INFO L158 Benchmark]: Boogie Preprocessor took 67.33ms. Allocated memory is still 161.5MB. Free memory was 87.1MB in the beginning and 84.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:45:29,897 INFO L158 Benchmark]: IcfgBuilder took 851.93ms. Allocated memory was 161.5MB in the beginning and 220.2MB in the end (delta: 58.7MB). Free memory was 84.6MB in the beginning and 172.3MB in the end (delta: -87.7MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-10 22:45:29,897 INFO L158 Benchmark]: BuchiAutomizer took 3674.59ms. Allocated memory is still 220.2MB. Free memory was 172.3MB in the beginning and 69.9MB in the end (delta: 102.4MB). Peak memory consumption was 99.3MB. Max. memory is 16.1GB. [2024-11-10 22:45:29,898 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 220.2MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:45:29,899 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 161.5MB. Free memory was 122.1MB in the beginning and 121.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.61ms. Allocated memory is still 161.5MB. Free memory was 105.1MB in the beginning and 90.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.11ms. Allocated memory is still 161.5MB. Free memory was 90.4MB in the beginning and 87.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.33ms. Allocated memory is still 161.5MB. Free memory was 87.1MB in the beginning and 84.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 851.93ms. Allocated memory was 161.5MB in the beginning and 220.2MB in the end (delta: 58.7MB). Free memory was 84.6MB in the beginning and 172.3MB in the end (delta: -87.7MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3674.59ms. Allocated memory is still 220.2MB. Free memory was 172.3MB in the beginning and 69.9MB in the end (delta: 102.4MB). Peak memory consumption was 99.3MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 220.2MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 4 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 64 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 406 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 401 mSDsluCounter, 471 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 418 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp60 ukn100 mio100 lsp100 div617 bol100 ite100 ukn100 eq135 hnf96 smp41 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-10 22:45:29,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:30,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-10 22:45:30,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:30,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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