./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:25:58,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:25:58,800 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-12 00:25:58,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:25:58,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:25:58,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:25:58,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:25:58,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:25:58,825 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:25:58,826 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:25:58,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:25:58,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:25:58,827 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:25:58,827 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:25:58,827 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:25:58,827 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:25:58,828 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:25:58,828 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:25:58,828 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:25:58,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:25:58,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:25:58,829 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:25:58,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:25:58,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:25:58,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:25:58,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:25:58,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:25:58,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:25:58,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:25:58,831 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:25:58,831 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:25:58,831 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:25:58,831 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:25:58,831 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:25:58,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:25:58,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:25:58,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:25:58,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:25:58,833 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:25:58,833 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2024-10-12 00:25:59,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:25:59,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:25:59,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:25:59,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:25:59,042 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:25:59,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2024-10-12 00:26:00,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:26:00,507 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:26:00,508 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2024-10-12 00:26:00,515 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9d5ec472a/e237fe2c9e4c45b297842c549f0c7c64/FLAGb2705b495 [2024-10-12 00:26:00,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9d5ec472a/e237fe2c9e4c45b297842c549f0c7c64 [2024-10-12 00:26:00,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:26:00,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:26:00,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:26:00,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:26:00,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:26:00,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d45c9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00, skipping insertion in model container [2024-10-12 00:26:00,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,562 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:26:00,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:26:00,769 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:26:00,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:26:00,816 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:26:00,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00 WrapperNode [2024-10-12 00:26:00,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:26:00,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:26:00,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:26:00,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:26:00,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,860 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 11, calls inlined = 9, statements flattened = 376 [2024-10-12 00:26:00,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:26:00,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:26:00,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:26:00,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:26:00,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,881 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,902 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 00:26:00,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:26:00,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:26:00,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:26:00,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:26:00,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (1/1) ... [2024-10-12 00:26:00,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:00,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:00,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:26:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:26:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:26:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:26:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:26:01,081 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:26:01,083 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:26:01,551 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2024-10-12 00:26:01,552 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:26:01,571 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:26:01,571 INFO L314 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-12 00:26:01,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:26:01 BoogieIcfgContainer [2024-10-12 00:26:01,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:26:01,573 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:26:01,573 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:26:01,577 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:26:01,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:26:01,578 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:26:00" (1/3) ... [2024-10-12 00:26:01,579 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4011353a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:26:01, skipping insertion in model container [2024-10-12 00:26:01,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:26:01,579 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:26:00" (2/3) ... [2024-10-12 00:26:01,580 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4011353a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:26:01, skipping insertion in model container [2024-10-12 00:26:01,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:26:01,581 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:26:01" (3/3) ... [2024-10-12 00:26:01,582 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2024-10-12 00:26:01,627 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:26:01,627 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:26:01,627 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:26:01,627 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:26:01,627 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:26:01,627 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:26:01,627 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:26:01,627 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:26:01,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.6637931034482758) internal successors, (193), 116 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:01,651 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2024-10-12 00:26:01,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:26:01,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:26:01,660 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-12 00:26:01,660 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:26:01,660 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:26:01,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.6637931034482758) internal successors, (193), 116 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:01,667 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2024-10-12 00:26:01,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:26:01,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:26:01,668 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-12 00:26:01,668 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:26:01,676 INFO L745 eck$LassoCheckResult]: Stem: 30#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 40#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 77#L29true assume !(0 == base2flt_~m#1 % 4294967296); 98#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 56#L57-2true [2024-10-12 00:26:01,677 INFO L747 eck$LassoCheckResult]: Loop: 56#L57-2true assume !false; 39#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 88#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 56#L57-2true [2024-10-12 00:26:01,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:01,681 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2024-10-12 00:26:01,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:01,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616697695] [2024-10-12 00:26:01,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:01,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:01,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:26:01,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616697695] [2024-10-12 00:26:01,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616697695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:26:01,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:26:01,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:26:01,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527618836] [2024-10-12 00:26:01,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:26:01,894 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:26:01,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:01,895 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2024-10-12 00:26:01,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:01,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105379213] [2024-10-12 00:26:01,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:01,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:01,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:26:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:01,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:26:01,989 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:01,989 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:01,989 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:01,990 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:01,990 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:26:01,990 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:01,990 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:01,990 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:01,990 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2024-10-12 00:26:01,990 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:01,991 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:02,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:02,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:02,100 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:02,101 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:26:02,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:02,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:02,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-12 00:26:02,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:26:02,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:02,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-12 00:26:02,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:02,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:02,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-12 00:26:02,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:26:02,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:02,205 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:26:02,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:02,210 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:02,210 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:02,210 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:02,210 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:02,210 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:26:02,211 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,211 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:02,211 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:02,211 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2024-10-12 00:26:02,211 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:02,211 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:02,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:02,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:02,286 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:02,290 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:26:02,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:02,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:02,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-12 00:26:02,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:02,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:02,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:02,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:02,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:02,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:02,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:02,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:02,310 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:26:02,314 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:26:02,314 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:26:02,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:02,317 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:02,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-12 00:26:02,319 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:26:02,319 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:26:02,320 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:26:02,320 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-10-12 00:26:02,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:02,335 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:26:02,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:02,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:26:02,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:02,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:26:02,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:02,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:02,442 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-12 00:26:02,444 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 117 states, 116 states have (on average 1.6637931034482758) internal successors, (193), 116 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:02,545 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 117 states, 116 states have (on average 1.6637931034482758) internal successors, (193), 116 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 347 states and 564 transitions. Complement of second has 6 states. [2024-10-12 00:26:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:26:02,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2024-10-12 00:26:02,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 372 transitions. Stem has 4 letters. Loop has 3 letters. [2024-10-12 00:26:02,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:02,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 372 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-12 00:26:02,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:02,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 372 transitions. Stem has 4 letters. Loop has 6 letters. [2024-10-12 00:26:02,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:02,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 347 states and 564 transitions. [2024-10-12 00:26:02,565 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2024-10-12 00:26:02,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 347 states to 121 states and 186 transitions. [2024-10-12 00:26:02,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2024-10-12 00:26:02,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2024-10-12 00:26:02,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 186 transitions. [2024-10-12 00:26:02,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:02,573 INFO L218 hiAutomatonCegarLoop]: Abstraction has 121 states and 186 transitions. [2024-10-12 00:26:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 186 transitions. [2024-10-12 00:26:02,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 103. [2024-10-12 00:26:02,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 103 states have (on average 1.5825242718446602) internal successors, (163), 102 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:02,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 163 transitions. [2024-10-12 00:26:02,597 INFO L240 hiAutomatonCegarLoop]: Abstraction has 103 states and 163 transitions. [2024-10-12 00:26:02,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:26:02,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:26:02,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:26:02,600 INFO L87 Difference]: Start difference. First operand 103 states and 163 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:02,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:26:02,685 INFO L93 Difference]: Finished difference Result 49 states and 70 transitions. [2024-10-12 00:26:02,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 70 transitions. [2024-10-12 00:26:02,686 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2024-10-12 00:26:02,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 70 transitions. [2024-10-12 00:26:02,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-10-12 00:26:02,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-10-12 00:26:02,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 70 transitions. [2024-10-12 00:26:02,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:26:02,687 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-10-12 00:26:02,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 70 transitions. [2024-10-12 00:26:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-10-12 00:26:02,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 48 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2024-10-12 00:26:02,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-10-12 00:26:02,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:26:02,696 INFO L425 stractBuchiCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-10-12 00:26:02,696 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:26:02,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 70 transitions. [2024-10-12 00:26:02,696 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2024-10-12 00:26:02,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:26:02,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:26:02,697 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:26:02,697 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:26:02,698 INFO L745 eck$LassoCheckResult]: Stem: 696#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 697#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 692#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 693#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 688#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 689#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 702#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 695#L47-3 [2024-10-12 00:26:02,698 INFO L747 eck$LassoCheckResult]: Loop: 695#L47-3 assume !false; 690#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 691#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 695#L47-3 [2024-10-12 00:26:02,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:02,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1807397383, now seen corresponding path program 1 times [2024-10-12 00:26:02,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:02,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416849392] [2024-10-12 00:26:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:02,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:02,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:26:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:02,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:26:02,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:02,724 INFO L85 PathProgramCache]: Analyzing trace with hash 136237, now seen corresponding path program 1 times [2024-10-12 00:26:02,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:02,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039502464] [2024-10-12 00:26:02,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:02,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:02,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:26:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:02,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:26:02,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:02,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1829446553, now seen corresponding path program 1 times [2024-10-12 00:26:02,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:02,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020420514] [2024-10-12 00:26:02,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:02,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:02,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:26:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:02,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:26:02,791 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:02,791 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:02,791 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:02,791 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:02,792 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:26:02,792 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,792 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:02,792 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:02,792 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2024-10-12 00:26:02,792 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:02,792 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:02,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:02,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:02,885 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:02,885 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:26:02,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:02,889 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:02,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-12 00:26:02,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:26:02,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:02,914 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:26:02,915 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:26:02,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-12 00:26:02,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:02,921 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:02,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-12 00:26:02,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:26:02,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:02,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-12 00:26:02,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:02,947 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:02,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-12 00:26:02,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:26:02,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:02,976 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:26:02,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-12 00:26:02,982 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:02,982 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:02,982 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:02,982 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:02,982 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:26:02,982 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:02,983 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:02,983 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:02,983 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2024-10-12 00:26:02,983 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:02,983 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:02,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:02,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:03,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:03,118 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:03,118 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:26:03,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:03,121 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:03,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-12 00:26:03,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:03,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:03,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:03,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:03,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:03,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:03,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:03,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:03,140 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:26:03,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-12 00:26:03,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:03,153 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:03,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-12 00:26:03,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:03,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:03,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:03,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:03,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:03,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:03,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:03,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:03,172 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:26:03,174 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:26:03,175 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:26:03,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:03,177 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:03,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-12 00:26:03,179 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:26:03,179 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:26:03,179 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:26:03,179 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-10-12 00:26:03,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-12 00:26:03,194 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:26:03,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:03,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:26:03,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:03,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:26:03,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:03,276 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-12 00:26:03,276 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 70 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:03,304 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 70 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 96 states and 135 transitions. Complement of second has 5 states. [2024-10-12 00:26:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:26:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:03,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-10-12 00:26:03,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-12 00:26:03,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:03,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-12 00:26:03,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:03,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-12 00:26:03,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:03,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 135 transitions. [2024-10-12 00:26:03,308 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2024-10-12 00:26:03,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 89 states and 126 transitions. [2024-10-12 00:26:03,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 83 [2024-10-12 00:26:03,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2024-10-12 00:26:03,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 126 transitions. [2024-10-12 00:26:03,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:03,309 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-10-12 00:26:03,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 126 transitions. [2024-10-12 00:26:03,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 52. [2024-10-12 00:26:03,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 51 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2024-10-12 00:26:03,312 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 74 transitions. [2024-10-12 00:26:03,312 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2024-10-12 00:26:03,312 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:26:03,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 74 transitions. [2024-10-12 00:26:03,313 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2024-10-12 00:26:03,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:26:03,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:26:03,313 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:26:03,313 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:26:03,313 INFO L745 eck$LassoCheckResult]: Stem: 893#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 894#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 888#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 889#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 883#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 884#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 899#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 871#L57-5 [2024-10-12 00:26:03,313 INFO L747 eck$LassoCheckResult]: Loop: 871#L57-5 assume !false; 867#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 868#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 871#L57-5 [2024-10-12 00:26:03,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:03,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1807397409, now seen corresponding path program 1 times [2024-10-12 00:26:03,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:03,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271945747] [2024-10-12 00:26:03,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:03,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:03,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:03,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:26:03,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271945747] [2024-10-12 00:26:03,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271945747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:26:03,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:26:03,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:26:03,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687831757] [2024-10-12 00:26:03,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:26:03,392 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:26:03,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:03,392 INFO L85 PathProgramCache]: Analyzing trace with hash 161996, now seen corresponding path program 1 times [2024-10-12 00:26:03,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:03,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972128056] [2024-10-12 00:26:03,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:03,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:03,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:26:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:03,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:26:03,432 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:03,432 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:03,432 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:03,432 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:03,432 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:26:03,433 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,433 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:03,433 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:03,433 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2024-10-12 00:26:03,433 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:03,436 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:03,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:03,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:03,513 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:03,513 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:26:03,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:03,515 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:03,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-12 00:26:03,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:26:03,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:03,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:03,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:03,547 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:03,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-12 00:26:03,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:26:03,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:03,573 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:26:03,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:03,582 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:03,582 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:03,582 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:03,582 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:03,582 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:26:03,582 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,582 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:03,582 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:03,582 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2024-10-12 00:26:03,582 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:03,582 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:03,583 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:03,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:03,662 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:03,663 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:26:03,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:03,667 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:03,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-12 00:26:03,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:03,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:03,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:03,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:03,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:03,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:03,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:03,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:03,687 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:26:03,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:03,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:03,700 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:03,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-12 00:26:03,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:03,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:03,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:03,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:03,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:03,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:03,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:03,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:03,716 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:26:03,718 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:26:03,718 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:26:03,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:03,720 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:03,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-12 00:26:03,722 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:26:03,722 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:26:03,723 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:26:03,723 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-10-12 00:26:03,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-12 00:26:03,740 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:26:03,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:03,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:26:03,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:03,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:26:03,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:03,787 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-12 00:26:03,788 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 74 transitions. cyclomatic complexity: 28 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:03,812 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 74 transitions. cyclomatic complexity: 28. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 98 states and 138 transitions. Complement of second has 5 states. [2024-10-12 00:26:03,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:26:03,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:03,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-10-12 00:26:03,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-12 00:26:03,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:03,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-12 00:26:03,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:03,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-12 00:26:03,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:03,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 138 transitions. [2024-10-12 00:26:03,815 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2024-10-12 00:26:03,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 91 states and 129 transitions. [2024-10-12 00:26:03,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2024-10-12 00:26:03,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2024-10-12 00:26:03,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 129 transitions. [2024-10-12 00:26:03,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:03,819 INFO L218 hiAutomatonCegarLoop]: Abstraction has 91 states and 129 transitions. [2024-10-12 00:26:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 129 transitions. [2024-10-12 00:26:03,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 55. [2024-10-12 00:26:03,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 54 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2024-10-12 00:26:03,822 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 78 transitions. [2024-10-12 00:26:03,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:26:03,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:26:03,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:26:03,824 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:03,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:26:03,880 INFO L93 Difference]: Finished difference Result 53 states and 71 transitions. [2024-10-12 00:26:03,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 71 transitions. [2024-10-12 00:26:03,880 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2024-10-12 00:26:03,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 71 transitions. [2024-10-12 00:26:03,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-10-12 00:26:03,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-10-12 00:26:03,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 71 transitions. [2024-10-12 00:26:03,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:03,884 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 71 transitions. [2024-10-12 00:26:03,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 71 transitions. [2024-10-12 00:26:03,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-10-12 00:26:03,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 48 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:03,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 67 transitions. [2024-10-12 00:26:03,890 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2024-10-12 00:26:03,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:26:03,891 INFO L425 stractBuchiCegarLoop]: Abstraction has 49 states and 67 transitions. [2024-10-12 00:26:03,891 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:26:03,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 67 transitions. [2024-10-12 00:26:03,892 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2024-10-12 00:26:03,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:26:03,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:26:03,893 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:26:03,893 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:26:03,893 INFO L745 eck$LassoCheckResult]: Stem: 1208#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1176#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1205#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1199#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1200#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1180#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1181#L47-3 assume !false; 1203#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1191#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1173#base2flt_returnLabel#2 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1174#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1196#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1197#L57-8 [2024-10-12 00:26:03,893 INFO L747 eck$LassoCheckResult]: Loop: 1197#L57-8 assume !false; 1189#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1190#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 1197#L57-8 [2024-10-12 00:26:03,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:03,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2092843178, now seen corresponding path program 1 times [2024-10-12 00:26:03,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:03,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741394227] [2024-10-12 00:26:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:03,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:03,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:03,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:26:03,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741394227] [2024-10-12 00:26:03,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741394227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:26:03,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:26:03,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:26:03,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360613595] [2024-10-12 00:26:03,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:26:03,961 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:26:03,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash 249380, now seen corresponding path program 1 times [2024-10-12 00:26:03,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:03,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149368213] [2024-10-12 00:26:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:03,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:03,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:26:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:03,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:26:03,998 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:03,999 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:03,999 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:03,999 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:03,999 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:26:03,999 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:03,999 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:03,999 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:03,999 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2024-10-12 00:26:03,999 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:03,999 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:04,000 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:04,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:04,060 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:04,060 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:26:04,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:04,062 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:04,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-12 00:26:04,065 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:26:04,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:04,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-12 00:26:04,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:04,089 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:04,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-12 00:26:04,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:26:04,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:04,128 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:26:04,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-12 00:26:04,135 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:04,136 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:04,136 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:04,136 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:04,136 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:26:04,136 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,136 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:04,136 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:04,136 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2024-10-12 00:26:04,136 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:04,136 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:04,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:04,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:04,196 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:04,196 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:26:04,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:04,197 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:04,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-12 00:26:04,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:04,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:04,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:04,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:04,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:04,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:04,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:04,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:04,212 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:26:04,214 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:26:04,214 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:26:04,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:04,217 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:04,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-12 00:26:04,220 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:26:04,220 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:26:04,220 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:26:04,221 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-10-12 00:26:04,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-12 00:26:04,233 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:26:04,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:04,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:26:04,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:04,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:26:04,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:04,290 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-12 00:26:04,290 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 67 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:04,309 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 67 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 103 transitions. Complement of second has 5 states. [2024-10-12 00:26:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:26:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-10-12 00:26:04,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 3 letters. [2024-10-12 00:26:04,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:04,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 16 letters. Loop has 3 letters. [2024-10-12 00:26:04,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:04,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 6 letters. [2024-10-12 00:26:04,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:04,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 103 transitions. [2024-10-12 00:26:04,313 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2024-10-12 00:26:04,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 70 states and 94 transitions. [2024-10-12 00:26:04,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2024-10-12 00:26:04,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2024-10-12 00:26:04,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 94 transitions. [2024-10-12 00:26:04,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:04,314 INFO L218 hiAutomatonCegarLoop]: Abstraction has 70 states and 94 transitions. [2024-10-12 00:26:04,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 94 transitions. [2024-10-12 00:26:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2024-10-12 00:26:04,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 51 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2024-10-12 00:26:04,318 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 71 transitions. [2024-10-12 00:26:04,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:26:04,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:26:04,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:26:04,319 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:04,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:26:04,345 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions. [2024-10-12 00:26:04,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 72 transitions. [2024-10-12 00:26:04,346 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-10-12 00:26:04,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 53 states and 71 transitions. [2024-10-12 00:26:04,347 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2024-10-12 00:26:04,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-10-12 00:26:04,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 71 transitions. [2024-10-12 00:26:04,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:04,348 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 71 transitions. [2024-10-12 00:26:04,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 71 transitions. [2024-10-12 00:26:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2024-10-12 00:26:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 51 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:04,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2024-10-12 00:26:04,350 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-10-12 00:26:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:26:04,351 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-10-12 00:26:04,351 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-12 00:26:04,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 70 transitions. [2024-10-12 00:26:04,352 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-10-12 00:26:04,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:26:04,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:26:04,352 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:26:04,352 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:26:04,352 INFO L745 eck$LassoCheckResult]: Stem: 1509#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1473#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1474#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1505#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1499#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1500#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1478#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1479#L47-3 assume !false; 1504#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1491#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1492#L47-3 assume !false; 1503#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1495#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1471#base2flt_returnLabel#2 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1472#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1496#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1498#L47-5 [2024-10-12 00:26:04,352 INFO L747 eck$LassoCheckResult]: Loop: 1498#L47-5 assume !false; 1502#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1507#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1498#L47-5 [2024-10-12 00:26:04,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:04,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1820795632, now seen corresponding path program 1 times [2024-10-12 00:26:04,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:04,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458066009] [2024-10-12 00:26:04,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:04,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:04,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:26:04,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458066009] [2024-10-12 00:26:04,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458066009] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:26:04,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824742558] [2024-10-12 00:26:04,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:04,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:26:04,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:04,433 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:26:04,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-12 00:26:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:04,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:26:04,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:04,495 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:26:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:04,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824742558] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:26:04,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:26:04,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-12 00:26:04,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223642864] [2024-10-12 00:26:04,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:26:04,522 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:26:04,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:04,526 INFO L85 PathProgramCache]: Analyzing trace with hash 223621, now seen corresponding path program 1 times [2024-10-12 00:26:04,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:04,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206187810] [2024-10-12 00:26:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:04,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:04,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:26:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:04,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:26:04,562 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:04,562 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:04,562 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:04,562 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:04,562 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:26:04,562 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,562 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:04,562 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:04,562 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2024-10-12 00:26:04,562 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:04,562 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:04,563 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:04,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:04,640 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:04,640 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:26:04,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:04,642 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:04,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-12 00:26:04,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:26:04,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:04,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:04,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:04,673 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:04,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-12 00:26:04,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:26:04,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:04,706 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:26:04,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:04,711 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:04,711 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:04,711 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:04,711 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:04,711 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:26:04,711 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,711 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:04,711 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:04,712 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2024-10-12 00:26:04,712 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:04,712 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:04,712 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:04,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:04,798 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:04,798 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:26:04,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:04,801 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:04,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-12 00:26:04,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:04,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:04,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:04,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:04,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:04,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:04,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:04,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:04,818 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:26:04,821 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:26:04,822 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:26:04,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:04,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:04,823 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:04,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-12 00:26:04,826 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:26:04,826 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:26:04,827 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:26:04,827 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-10-12 00:26:04,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:04,840 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:26:04,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:04,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:26:04,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:04,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:26:04,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:04,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-12 00:26:04,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:04,930 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-12 00:26:04,930 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 70 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:04,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:04,947 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 70 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 107 transitions. Complement of second has 5 states. [2024-10-12 00:26:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:26:04,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:04,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-10-12 00:26:04,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 3 letters. [2024-10-12 00:26:04,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:04,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 19 letters. Loop has 3 letters. [2024-10-12 00:26:04,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:04,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 6 letters. [2024-10-12 00:26:04,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:04,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 107 transitions. [2024-10-12 00:26:04,950 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2024-10-12 00:26:04,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 98 transitions. [2024-10-12 00:26:04,951 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2024-10-12 00:26:04,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2024-10-12 00:26:04,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 98 transitions. [2024-10-12 00:26:04,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:04,951 INFO L218 hiAutomatonCegarLoop]: Abstraction has 74 states and 98 transitions. [2024-10-12 00:26:04,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 98 transitions. [2024-10-12 00:26:04,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 55. [2024-10-12 00:26:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 54 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:04,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2024-10-12 00:26:04,955 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 74 transitions. [2024-10-12 00:26:04,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:26:04,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 00:26:04,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-12 00:26:04,957 INFO L87 Difference]: Start difference. First operand 55 states and 74 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:04,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-12 00:26:04,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-12 00:26:05,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:26:05,022 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2024-10-12 00:26:05,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 126 transitions. [2024-10-12 00:26:05,023 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-12 00:26:05,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 86 states and 120 transitions. [2024-10-12 00:26:05,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2024-10-12 00:26:05,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2024-10-12 00:26:05,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 120 transitions. [2024-10-12 00:26:05,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:05,024 INFO L218 hiAutomatonCegarLoop]: Abstraction has 86 states and 120 transitions. [2024-10-12 00:26:05,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 120 transitions. [2024-10-12 00:26:05,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 63. [2024-10-12 00:26:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 62 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2024-10-12 00:26:05,028 INFO L240 hiAutomatonCegarLoop]: Abstraction has 63 states and 85 transitions. [2024-10-12 00:26:05,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:26:05,032 INFO L425 stractBuchiCegarLoop]: Abstraction has 63 states and 85 transitions. [2024-10-12 00:26:05,032 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-12 00:26:05,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 85 transitions. [2024-10-12 00:26:05,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-10-12 00:26:05,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:26:05,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:26:05,033 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:26:05,033 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:26:05,033 INFO L745 eck$LassoCheckResult]: Stem: 1963#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1923#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1924#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1957#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1948#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1949#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1928#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1929#L47-3 assume !false; 1961#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1970#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1943#$Ultimate##64 assume 0 == base2flt_~m#1 % 4294967296;base2flt_#t~bitwise4#1 := 0; 1911#L76-9 base2flt_~m#1 := base2flt_#t~bitwise4#1;havoc base2flt_#t~bitwise4#1; 1912#L77-6 assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~bitwise5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296); 1909#L77-11 base2flt_~res~0#1 := base2flt_#t~bitwise5#1;havoc base2flt_#t~bitwise5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1944#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1921#base2flt_returnLabel#2 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1922#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1913#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1914#base2flt_returnLabel#3 main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1960#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1925#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 1926#L47-7 [2024-10-12 00:26:05,033 INFO L747 eck$LassoCheckResult]: Loop: 1926#L47-7 assume !false; 1917#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1918#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 1926#L47-7 [2024-10-12 00:26:05,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:05,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1123658843, now seen corresponding path program 1 times [2024-10-12 00:26:05,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:05,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557924774] [2024-10-12 00:26:05,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:05,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:05,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:26:05,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557924774] [2024-10-12 00:26:05,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557924774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:26:05,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:26:05,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:26:05,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267056559] [2024-10-12 00:26:05,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:26:05,069 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:26:05,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:05,069 INFO L85 PathProgramCache]: Analyzing trace with hash 311005, now seen corresponding path program 1 times [2024-10-12 00:26:05,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:05,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451350617] [2024-10-12 00:26:05,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:05,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:05,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:26:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:05,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:26:05,095 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:05,096 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:05,096 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:05,096 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:05,096 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:26:05,096 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,096 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:05,096 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:05,096 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2024-10-12 00:26:05,096 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:05,096 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:05,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:05,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:05,175 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:05,175 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:26:05,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,177 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-12 00:26:05,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:26:05,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:05,199 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:26:05,199 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:26:05,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:05,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,204 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-12 00:26:05,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:26:05,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:05,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:05,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,233 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-12 00:26:05,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:26:05,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:05,265 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:26:05,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:05,271 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:05,272 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:05,272 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:05,272 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:05,272 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:26:05,272 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,272 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:05,272 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:05,272 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2024-10-12 00:26:05,272 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:05,272 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:05,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:05,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:05,356 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:05,356 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:26:05,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,358 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-12 00:26:05,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:05,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:05,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:05,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:05,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:05,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:05,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:05,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:05,375 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:26:05,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-12 00:26:05,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,387 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-12 00:26:05,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:05,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:05,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:05,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:05,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:05,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:05,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:05,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:05,402 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:26:05,403 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:26:05,403 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:26:05,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,406 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-12 00:26:05,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:26:05,407 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:26:05,407 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:26:05,407 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-10-12 00:26:05,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:05,418 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:26:05,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:05,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:26:05,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:05,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:26:05,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:05,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:05,493 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-12 00:26:05,493 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 85 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:05,498 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 85 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 67 states and 89 transitions. Complement of second has 4 states. [2024-10-12 00:26:05,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:26:05,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:05,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-10-12 00:26:05,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 21 letters. Loop has 3 letters. [2024-10-12 00:26:05,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:05,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 24 letters. Loop has 3 letters. [2024-10-12 00:26:05,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:05,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 21 letters. Loop has 6 letters. [2024-10-12 00:26:05,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:05,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 89 transitions. [2024-10-12 00:26:05,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:26:05,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 60 states and 81 transitions. [2024-10-12 00:26:05,500 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2024-10-12 00:26:05,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2024-10-12 00:26:05,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2024-10-12 00:26:05,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:05,501 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 81 transitions. [2024-10-12 00:26:05,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2024-10-12 00:26:05,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-10-12 00:26:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.35) internal successors, (81), 59 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:05,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2024-10-12 00:26:05,502 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 81 transitions. [2024-10-12 00:26:05,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:26:05,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:26:05,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:26:05,502 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:05,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:26:05,554 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2024-10-12 00:26:05,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 91 transitions. [2024-10-12 00:26:05,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:26:05,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 69 states and 91 transitions. [2024-10-12 00:26:05,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2024-10-12 00:26:05,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2024-10-12 00:26:05,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 91 transitions. [2024-10-12 00:26:05,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:26:05,556 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 91 transitions. [2024-10-12 00:26:05,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 91 transitions. [2024-10-12 00:26:05,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2024-10-12 00:26:05,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 61 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:05,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2024-10-12 00:26:05,559 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 83 transitions. [2024-10-12 00:26:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:26:05,563 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 83 transitions. [2024-10-12 00:26:05,563 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-12 00:26:05,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 83 transitions. [2024-10-12 00:26:05,564 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:26:05,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:26:05,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:26:05,564 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:26:05,564 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:26:05,565 INFO L745 eck$LassoCheckResult]: Stem: 2308#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 2270#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2271#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2303#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2294#base2flt_returnLabel#1 main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2295#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2274#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2275#L47-3 assume !false; 2302#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 2287#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2289#$Ultimate##64 assume !(0 == base2flt_~m#1 % 4294967296); 2266#L76-6 assume 4278190079 == base2flt_~m#1 % 4294967296;base2flt_#t~bitwise4#1 := base2flt_~m#1; 2260#L76-9 base2flt_~m#1 := base2flt_#t~bitwise4#1;havoc base2flt_#t~bitwise4#1; 2261#L77-6 assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~bitwise5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296); 2258#L77-11 base2flt_~res~0#1 := base2flt_#t~bitwise5#1;havoc base2flt_#t~bitwise5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2290#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2268#base2flt_returnLabel#2 main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2269#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2262#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2263#base2flt_returnLabel#3 main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2306#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2272#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2273#L57-11 [2024-10-12 00:26:05,565 INFO L747 eck$LassoCheckResult]: Loop: 2273#L57-11 assume !false; 2276#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 2277#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 2273#L57-11 [2024-10-12 00:26:05,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1482624755, now seen corresponding path program 1 times [2024-10-12 00:26:05,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:05,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170681234] [2024-10-12 00:26:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:05,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:05,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:26:05,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170681234] [2024-10-12 00:26:05,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170681234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:26:05,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:26:05,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:26:05,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492429094] [2024-10-12 00:26:05,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:26:05,667 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:26:05,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:05,668 INFO L85 PathProgramCache]: Analyzing trace with hash 336764, now seen corresponding path program 1 times [2024-10-12 00:26:05,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:26:05,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985728887] [2024-10-12 00:26:05,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:26:05,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:26:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:05,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:26:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:26:05,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:26:05,698 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:05,699 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:05,699 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:05,699 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:05,699 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:26:05,699 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,699 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:05,699 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:05,699 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2024-10-12 00:26:05,699 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:05,699 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:05,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:05,705 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:05,764 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:05,764 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:26:05,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,766 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-12 00:26:05,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:26:05,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:05,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-12 00:26:05,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,793 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-12 00:26:05,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:26:05,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:26:05,816 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:26:05,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:05,821 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:26:05,821 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:26:05,821 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:26:05,821 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:26:05,821 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:26:05,821 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,821 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:26:05,821 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:26:05,821 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2024-10-12 00:26:05,821 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:26:05,821 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:26:05,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:05,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:26:05,879 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:26:05,880 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:26:05,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,881 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-12 00:26:05,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:05,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:05,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:05,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:05,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:05,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:05,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:05,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:05,897 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:26:05,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-10-12 00:26:05,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,909 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-12 00:26:05,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:26:05,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:26:05,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:26:05,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:26:05,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:26:05,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:26:05,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:26:05,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:26:05,923 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:26:05,925 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:26:05,925 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:26:05,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:26:05,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:26:05,926 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:26:05,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-12 00:26:05,928 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:26:05,928 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:26:05,928 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:26:05,928 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-10-12 00:26:05,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-10-12 00:26:05,939 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:26:05,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:26:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:05,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:26:05,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:26:05,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:26:05,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:26:05,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:26:05,990 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-12 00:26:05,991 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 83 transitions. cyclomatic complexity: 25 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:06,000 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 83 transitions. cyclomatic complexity: 25. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 87 transitions. Complement of second has 4 states. [2024-10-12 00:26:06,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:26:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:06,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-10-12 00:26:06,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 22 letters. Loop has 3 letters. [2024-10-12 00:26:06,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:06,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 25 letters. Loop has 3 letters. [2024-10-12 00:26:06,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:06,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 22 letters. Loop has 6 letters. [2024-10-12 00:26:06,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:26:06,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 87 transitions. [2024-10-12 00:26:06,003 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:26:06,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 0 states and 0 transitions. [2024-10-12 00:26:06,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:26:06,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:26:06,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:26:06,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:26:06,003 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:26:06,003 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:26:06,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:26:06,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:26:06,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:26:06,004 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:26:06,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:26:06,004 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-12 00:26:06,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-12 00:26:06,005 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:26:06,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 00:26:06,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:26:06,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:26:06,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:26:06,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:26:06,005 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:26:06,005 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:26:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 00:26:06,005 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:26:06,005 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-12 00:26:06,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-12 00:26:06,005 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:26:06,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-12 00:26:06,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:26:06 BoogieIcfgContainer [2024-10-12 00:26:06,012 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:26:06,012 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:26:06,012 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:26:06,012 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:26:06,013 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:26:01" (3/4) ... [2024-10-12 00:26:06,014 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 00:26:06,015 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:26:06,015 INFO L158 Benchmark]: Toolchain (without parser) took 5484.76ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 113.3MB in the beginning and 110.4MB in the end (delta: 2.9MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2024-10-12 00:26:06,016 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:26:06,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.76ms. Allocated memory is still 184.5MB. Free memory was 113.0MB in the beginning and 98.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 00:26:06,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.28ms. Allocated memory is still 184.5MB. Free memory was 98.3MB in the beginning and 95.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:26:06,016 INFO L158 Benchmark]: Boogie Preprocessor took 60.47ms. Allocated memory is still 184.5MB. Free memory was 95.3MB in the beginning and 92.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:26:06,016 INFO L158 Benchmark]: RCFGBuilder took 648.58ms. Allocated memory is still 184.5MB. Free memory was 92.3MB in the beginning and 145.3MB in the end (delta: -53.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-12 00:26:06,017 INFO L158 Benchmark]: BuchiAutomizer took 4439.03ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 145.3MB in the beginning and 110.4MB in the end (delta: 34.9MB). Peak memory consumption was 103.9MB. Max. memory is 16.1GB. [2024-10-12 00:26:06,017 INFO L158 Benchmark]: Witness Printer took 2.97ms. Allocated memory is still 251.7MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:26:06,018 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.76ms. Allocated memory is still 184.5MB. Free memory was 113.0MB in the beginning and 98.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.28ms. Allocated memory is still 184.5MB. Free memory was 98.3MB in the beginning and 95.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.47ms. Allocated memory is still 184.5MB. Free memory was 95.3MB in the beginning and 92.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 648.58ms. Allocated memory is still 184.5MB. Free memory was 92.3MB in the beginning and 145.3MB in the end (delta: -53.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4439.03ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 145.3MB in the beginning and 110.4MB in the end (delta: 34.9MB). Peak memory consumption was 103.9MB. Max. memory is 16.1GB. * Witness Printer took 2.97ms. Allocated memory is still 251.7MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (6 trivial, 7 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 4 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 3.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 163 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 655 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 648 mSDsluCounter, 1099 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 226 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 873 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp61 ukn100 mio100 lsp100 div612 bol100 ite100 ukn100 eq132 hnf96 smp41 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 29ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-12 00:26:06,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-12 00:26:06,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-12 00:26:06,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-12 00:26:06,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE