./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0.3.0-?-551b009-m [2025-01-10 07:13:57,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 07:13:57,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-01-10 07:13:57,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 07:13:57,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 07:13:57,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 07:13:57,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 07:13:57,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 07:13:57,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 07:13:57,921 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 07:13:57,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 07:13:57,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 07:13:57,921 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 07:13:57,921 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 07:13:57,921 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 07:13:57,921 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 07:13:57,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 07:13:57,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 07:13:57,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 07:13:57,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 07:13:57,923 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 07:13:57,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 07:13:57,923 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 07:13:57,923 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 07:13:57,923 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 07:13:57,923 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 07:13:57,923 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 07:13:57,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 07:13:57,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 07:13:57,924 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 07:13:57,924 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-jdk21/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 [2025-01-10 07:13:58,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 07:13:58,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 07:13:58,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 07:13:58,181 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 07:13:58,181 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 07:13:58,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2025-01-10 07:13:59,393 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cad06f913/4a1565921b154641b1088b3e62e87223/FLAGb017e837b [2025-01-10 07:13:59,681 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 07:13:59,682 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2025-01-10 07:13:59,690 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cad06f913/4a1565921b154641b1088b3e62e87223/FLAGb017e837b [2025-01-10 07:13:59,712 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cad06f913/4a1565921b154641b1088b3e62e87223 [2025-01-10 07:13:59,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 07:13:59,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 07:13:59,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 07:13:59,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 07:13:59,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 07:13:59,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:13:59,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6281fe35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59, skipping insertion in model container [2025-01-10 07:13:59,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:13:59,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 07:13:59,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:13:59,913 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 07:13:59,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:13:59,949 INFO L204 MainTranslator]: Completed translation [2025-01-10 07:13:59,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59 WrapperNode [2025-01-10 07:13:59,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 07:13:59,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 07:13:59,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 07:13:59,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 07:13:59,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:13:59,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:13:59,991 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 11, calls inlined = 9, statements flattened = 352 [2025-01-10 07:13:59,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 07:13:59,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 07:13:59,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 07:13:59,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 07:14:00,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,009 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,029 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]. [2025-01-10 07:14:00,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,034 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 07:14:00,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 07:14:00,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 07:14:00,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 07:14:00,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (1/1) ... [2025-01-10 07:14:00,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:00,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:00,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:00,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-01-10 07:14:00,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 07:14:00,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 07:14:00,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 07:14:00,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 07:14:00,170 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 07:14:00,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 07:14:00,588 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2025-01-10 07:14:00,588 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 07:14:00,596 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 07:14:00,596 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2025-01-10 07:14:00,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:14:00 BoogieIcfgContainer [2025-01-10 07:14:00,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 07:14:00,597 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 07:14:00,598 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 07:14:00,607 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 07:14:00,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:14:00,608 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 07:13:59" (1/3) ... [2025-01-10 07:14:00,612 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4adbc450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:14:00, skipping insertion in model container [2025-01-10 07:14:00,612 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:14:00,612 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:59" (2/3) ... [2025-01-10 07:14:00,613 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4adbc450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:14:00, skipping insertion in model container [2025-01-10 07:14:00,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:14:00,613 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:14:00" (3/3) ... [2025-01-10 07:14:00,614 INFO L363 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2025-01-10 07:14:00,667 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 07:14:00,668 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 07:14:00,668 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 07:14:00,668 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 07:14:00,668 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 07:14:00,669 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 07:14:00,669 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 07:14:00,669 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 07:14:00,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.6388888888888888) internal successors, (177), 108 states have internal predecessors, (177), 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) [2025-01-10 07:14:00,692 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 16 [2025-01-10 07:14:00,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:14:00,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:14:00,703 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-01-10 07:14:00,703 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 07:14:00,703 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 07:14:00,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.6388888888888888) internal successors, (177), 108 states have internal predecessors, (177), 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) [2025-01-10 07:14:00,709 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 16 [2025-01-10 07:14:00,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:14:00,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:14:00,711 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-01-10 07:14:00,712 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 07:14:00,717 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2025-01-10 07:14:00,718 INFO L754 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2025-01-10 07:14:00,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:00,722 INFO L85 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2025-01-10 07:14:00,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:00,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671855844] [2025-01-10 07:14:00,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:00,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:00,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 07:14:00,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 07:14:00,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:00,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:00,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:14:00,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671855844] [2025-01-10 07:14:00,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671855844] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:14:00,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:14:00,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 07:14:00,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829545167] [2025-01-10 07:14:00,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:14:00,875 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-01-10 07:14:00,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:00,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1572, now seen corresponding path program 1 times [2025-01-10 07:14:00,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:00,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037224440] [2025-01-10 07:14:00,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:00,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:00,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:00,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:00,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:00,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:00,882 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:14:00,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:00,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:00,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:00,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:00,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:14:00,930 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:00,930 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:00,931 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:00,931 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:00,931 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:14:00,931 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:00,931 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:00,931 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:00,931 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2025-01-10 07:14:00,932 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:00,932 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:00,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:00,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:01,050 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:01,051 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:14:01,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:01,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:01,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-01-10 07:14:01,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:14:01,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:01,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-01-10 07:14:01,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:01,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:01,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-01-10 07:14:01,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:14:01,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:01,113 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:14:01,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:01,119 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:01,119 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:01,119 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:01,120 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:01,120 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:14:01,120 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,120 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:01,120 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:01,120 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2025-01-10 07:14:01,120 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:01,120 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:01,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:01,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:01,217 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:01,220 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:14:01,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:01,225 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:01,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-01-10 07:14:01,227 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 [2025-01-10 07:14:01,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:01,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:01,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:01,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:01,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:01,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:01,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:01,268 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:14:01,272 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:14:01,274 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:14:01,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:01,277 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:01,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-01-10 07:14:01,282 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:14:01,283 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:14:01,283 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:14:01,283 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2025-01-10 07:14:01,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-01-10 07:14:01,293 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:14:01,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:01,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 07:14:01,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 07:14:01,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:01,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:01,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 07:14:01,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:01,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:01,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:01,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:01,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:01,364 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:14:01,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:01,420 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 [2025-01-10 07:14:01,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 109 states, 108 states have (on average 1.6388888888888888) internal successors, (177), 108 states have internal predecessors, (177), 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 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2025-01-10 07:14:01,527 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 109 states, 108 states have (on average 1.6388888888888888) internal successors, (177), 108 states have internal predecessors, (177), 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 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 327 states and 523 transitions. Complement of second has 6 states. [2025-01-10 07:14:01,532 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 [2025-01-10 07:14:01,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2025-01-10 07:14:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 346 transitions. [2025-01-10 07:14:01,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 346 transitions. Stem has 4 letters. Loop has 2 letters. [2025-01-10 07:14:01,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:01,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 346 transitions. Stem has 6 letters. Loop has 2 letters. [2025-01-10 07:14:01,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:01,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 346 transitions. Stem has 4 letters. Loop has 4 letters. [2025-01-10 07:14:01,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:01,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 523 transitions. [2025-01-10 07:14:01,559 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 26 [2025-01-10 07:14:01,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 107 states and 168 transitions. [2025-01-10 07:14:01,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 102 [2025-01-10 07:14:01,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 105 [2025-01-10 07:14:01,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 168 transitions. [2025-01-10 07:14:01,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:01,569 INFO L218 hiAutomatonCegarLoop]: Abstraction has 107 states and 168 transitions. [2025-01-10 07:14:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 168 transitions. [2025-01-10 07:14:01,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 90. [2025-01-10 07:14:01,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.6222222222222222) internal successors, (146), 89 states have internal predecessors, (146), 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) [2025-01-10 07:14:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 146 transitions. [2025-01-10 07:14:01,589 INFO L240 hiAutomatonCegarLoop]: Abstraction has 90 states and 146 transitions. [2025-01-10 07:14:01,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:14:01,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 07:14:01,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 07:14:01,591 INFO L87 Difference]: Start difference. First operand 90 states and 146 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:14:01,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:14:01,650 INFO L93 Difference]: Finished difference Result 43 states and 64 transitions. [2025-01-10 07:14:01,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 64 transitions. [2025-01-10 07:14:01,651 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 12 [2025-01-10 07:14:01,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 64 transitions. [2025-01-10 07:14:01,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2025-01-10 07:14:01,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2025-01-10 07:14:01,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 64 transitions. [2025-01-10 07:14:01,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:14:01,652 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 64 transitions. [2025-01-10 07:14:01,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 64 transitions. [2025-01-10 07:14:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2025-01-10 07:14:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.4883720930232558) internal successors, (64), 42 states have internal predecessors, (64), 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) [2025-01-10 07:14:01,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 64 transitions. [2025-01-10 07:14:01,654 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 64 transitions. [2025-01-10 07:14:01,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 07:14:01,655 INFO L432 stractBuchiCegarLoop]: Abstraction has 43 states and 64 transitions. [2025-01-10 07:14:01,655 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-01-10 07:14:01,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 64 transitions. [2025-01-10 07:14:01,655 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 12 [2025-01-10 07:14:01,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:14:01,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:14:01,655 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:14:01,656 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 07:14:01,656 INFO L752 eck$LassoCheckResult]: Stem: "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);" "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;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2025-01-10 07:14:01,656 INFO L754 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2025-01-10 07:14:01,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:01,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027975, now seen corresponding path program 1 times [2025-01-10 07:14:01,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:01,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234876477] [2025-01-10 07:14:01,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:01,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:01,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:14:01,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:14:01,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:01,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:01,665 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:14:01,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:14:01,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:14:01,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:01,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:01,676 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:14:01,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:01,677 INFO L85 PathProgramCache]: Analyzing trace with hash 4004, now seen corresponding path program 1 times [2025-01-10 07:14:01,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:01,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952303815] [2025-01-10 07:14:01,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:01,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:01,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:01,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:01,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:01,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:01,681 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:14:01,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:01,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:01,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:01,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:01,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:14:01,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:01,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1387099434, now seen corresponding path program 1 times [2025-01-10 07:14:01,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:01,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461271727] [2025-01-10 07:14:01,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:01,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:01,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 07:14:01,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 07:14:01,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:01,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:01,694 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:14:01,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 07:14:01,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 07:14:01,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:01,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:01,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:14:01,727 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:01,727 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:01,727 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:01,727 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:01,727 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:14:01,727 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,727 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:01,727 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:01,727 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2025-01-10 07:14:01,727 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:01,727 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:01,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:01,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:01,813 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:01,813 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:14:01,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:01,815 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:01,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-01-10 07:14:01,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:14:01,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:01,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:01,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:01,842 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:01,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-01-10 07:14:01,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:14:01,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:01,871 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:14:01,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-01-10 07:14:01,876 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:01,876 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:01,876 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:01,876 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:01,876 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:14:01,876 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,877 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:01,877 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:01,877 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2025-01-10 07:14:01,877 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:01,877 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:01,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:01,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:01,994 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:01,995 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:14:01,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:01,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:01,997 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-01-10 07:14:02,003 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 [2025-01-10 07:14:02,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:02,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:02,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:02,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:02,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:02,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:02,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:02,017 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:14:02,019 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:14:02,020 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:14:02,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:02,028 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-01-10 07:14:02,033 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:14:02,033 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:14:02,033 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:14:02,033 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2025-01-10 07:14:02,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:02,040 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:14:02,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:02,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:14:02,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:14:02,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:02,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 07:14:02,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:02,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:02,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:02,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:02,090 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:14:02,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:02,106 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 [2025-01-10 07:14:02,107 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 64 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-01-10 07:14:02,136 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 64 transitions. cyclomatic complexity: 27. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 85 states and 124 transitions. Complement of second has 5 states. [2025-01-10 07:14:02,137 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 [2025-01-10 07:14:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-01-10 07:14:02,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-01-10 07:14:02,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 72 transitions. Stem has 7 letters. Loop has 2 letters. [2025-01-10 07:14:02,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:02,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 72 transitions. Stem has 9 letters. Loop has 2 letters. [2025-01-10 07:14:02,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:02,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 72 transitions. Stem has 7 letters. Loop has 4 letters. [2025-01-10 07:14:02,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:02,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 124 transitions. [2025-01-10 07:14:02,140 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 18 [2025-01-10 07:14:02,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 78 states and 115 transitions. [2025-01-10 07:14:02,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2025-01-10 07:14:02,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2025-01-10 07:14:02,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 115 transitions. [2025-01-10 07:14:02,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:02,141 INFO L218 hiAutomatonCegarLoop]: Abstraction has 78 states and 115 transitions. [2025-01-10 07:14:02,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 115 transitions. [2025-01-10 07:14:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 45. [2025-01-10 07:14:02,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.488888888888889) internal successors, (67), 44 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) [2025-01-10 07:14:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 67 transitions. [2025-01-10 07:14:02,147 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 67 transitions. [2025-01-10 07:14:02,147 INFO L432 stractBuchiCegarLoop]: Abstraction has 45 states and 67 transitions. [2025-01-10 07:14:02,147 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-01-10 07:14:02,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 67 transitions. [2025-01-10 07:14:02,148 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2025-01-10 07:14:02,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:14:02,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:14:02,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:14:02,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 07:14:02,148 INFO L752 eck$LassoCheckResult]: Stem: "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);" "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;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" [2025-01-10 07:14:02,148 INFO L754 eck$LassoCheckResult]: Loop: "assume base2flt_~m#1 % 4294967296 >= 33554432;" "assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2;" [2025-01-10 07:14:02,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:02,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027995, now seen corresponding path program 1 times [2025-01-10 07:14:02,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:02,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409579823] [2025-01-10 07:14:02,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:02,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:02,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:14:02,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:14:02,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:02,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:02,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:14:02,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409579823] [2025-01-10 07:14:02,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409579823] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:14:02,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:14:02,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 07:14:02,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218450008] [2025-01-10 07:14:02,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:14:02,215 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-01-10 07:14:02,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:02,215 INFO L85 PathProgramCache]: Analyzing trace with hash 4585, now seen corresponding path program 1 times [2025-01-10 07:14:02,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:02,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545689065] [2025-01-10 07:14:02,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:02,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:02,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:02,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:02,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:02,221 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:14:02,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:02,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:02,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:02,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:14:02,251 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:02,251 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:02,251 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:02,251 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:02,251 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:14:02,251 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,251 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:02,252 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:02,252 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2025-01-10 07:14:02,252 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:02,252 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:02,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:02,258 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:02,325 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:02,326 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:14:02,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:02,334 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-01-10 07:14:02,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:14:02,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:02,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:02,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:02,358 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-01-10 07:14:02,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:14:02,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:02,381 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:14:02,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:02,386 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:02,386 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:02,386 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:02,386 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:02,386 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:14:02,386 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,386 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:02,386 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:02,386 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2025-01-10 07:14:02,386 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:02,386 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:02,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:02,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:02,459 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:02,459 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:14:02,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:02,463 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-01-10 07:14:02,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-01-10 07:14:02,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:02,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:02,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:02,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:02,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:02,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:02,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:02,499 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:14:02,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-01-10 07:14:02,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:02,511 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-01-10 07:14:02,514 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 [2025-01-10 07:14:02,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:02,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:02,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:02,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:02,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:02,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:02,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:02,532 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:14:02,534 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:14:02,535 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:14:02,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:02,544 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-01-10 07:14:02,545 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:14:02,545 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:14:02,546 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:14:02,546 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2025-01-10 07:14:02,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:02,555 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:14:02,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:02,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:14:02,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:14:02,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:02,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 07:14:02,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:02,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:02,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:02,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:02,588 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:14:02,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:02,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:02,613 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 [2025-01-10 07:14:02,613 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 67 transitions. cyclomatic complexity: 28 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-01-10 07:14:02,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-01-10 07:14:02,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-01-10 07:14:02,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:02,636 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 67 transitions. cyclomatic complexity: 28. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 86 states and 128 transitions. Complement of second has 5 states. [2025-01-10 07:14:02,637 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 [2025-01-10 07:14:02,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-01-10 07:14:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-01-10 07:14:02,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 7 letters. Loop has 2 letters. [2025-01-10 07:14:02,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:02,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 9 letters. Loop has 2 letters. [2025-01-10 07:14:02,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:02,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 7 letters. Loop has 4 letters. [2025-01-10 07:14:02,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:02,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 128 transitions. [2025-01-10 07:14:02,638 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 16 [2025-01-10 07:14:02,640 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 79 states and 118 transitions. [2025-01-10 07:14:02,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2025-01-10 07:14:02,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 75 [2025-01-10 07:14:02,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 118 transitions. [2025-01-10 07:14:02,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:02,640 INFO L218 hiAutomatonCegarLoop]: Abstraction has 79 states and 118 transitions. [2025-01-10 07:14:02,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 118 transitions. [2025-01-10 07:14:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 47. [2025-01-10 07:14:02,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 46 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) [2025-01-10 07:14:02,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 71 transitions. [2025-01-10 07:14:02,642 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 71 transitions. [2025-01-10 07:14:02,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:14:02,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 07:14:02,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 07:14:02,643 INFO L87 Difference]: Start difference. First operand 47 states and 71 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) [2025-01-10 07:14:02,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:14:02,689 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2025-01-10 07:14:02,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 63 transitions. [2025-01-10 07:14:02,689 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2025-01-10 07:14:02,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 63 transitions. [2025-01-10 07:14:02,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2025-01-10 07:14:02,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2025-01-10 07:14:02,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 63 transitions. [2025-01-10 07:14:02,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:02,690 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2025-01-10 07:14:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 63 transitions. [2025-01-10 07:14:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2025-01-10 07:14:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 42 states have internal predecessors, (61), 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) [2025-01-10 07:14:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 61 transitions. [2025-01-10 07:14:02,692 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 61 transitions. [2025-01-10 07:14:02,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 07:14:02,693 INFO L432 stractBuchiCegarLoop]: Abstraction has 43 states and 61 transitions. [2025-01-10 07:14:02,693 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-01-10 07:14:02,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 61 transitions. [2025-01-10 07:14:02,693 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2025-01-10 07:14:02,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:14:02,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:14:02,694 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:14:02,694 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 07:14:02,694 INFO L752 eck$LassoCheckResult]: Stem: "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);" "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;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2025-01-10 07:14:02,694 INFO L754 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2025-01-10 07:14:02,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:02,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1198798235, now seen corresponding path program 1 times [2025-01-10 07:14:02,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:02,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081739681] [2025-01-10 07:14:02,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:02,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 07:14:02,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 07:14:02,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:02,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:02,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:14:02,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081739681] [2025-01-10 07:14:02,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081739681] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:14:02,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:14:02,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 07:14:02,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605433982] [2025-01-10 07:14:02,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:14:02,727 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-01-10 07:14:02,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:02,727 INFO L85 PathProgramCache]: Analyzing trace with hash 6436, now seen corresponding path program 1 times [2025-01-10 07:14:02,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:02,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762907512] [2025-01-10 07:14:02,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:02,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:02,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:02,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:02,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:02,731 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:14:02,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:02,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:02,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:02,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:02,733 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:14:02,755 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:02,755 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:02,755 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:02,755 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:02,755 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:14:02,755 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,755 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:02,755 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:02,755 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2025-01-10 07:14:02,755 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:02,756 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:02,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:02,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:02,836 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:02,836 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:14:02,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:02,839 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-01-10 07:14:02,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:14:02,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:02,857 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-01-10 07:14:02,857 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: [] [2025-01-10 07:14:02,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-01-10 07:14:02,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:02,865 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-01-10 07:14:02,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:14:02,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:02,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:02,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:02,886 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:02,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-01-10 07:14:02,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:14:02,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:02,912 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:14:02,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-01-10 07:14:02,916 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:02,916 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:02,916 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:02,916 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:02,916 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:14:02,916 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:02,916 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:02,916 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:02,916 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2025-01-10 07:14:02,916 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:02,916 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:02,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:02,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:03,002 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:03,003 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:14:03,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:03,005 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:03,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-01-10 07:14:03,008 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 [2025-01-10 07:14:03,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:03,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:03,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:03,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:03,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:03,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:03,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:03,022 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:14:03,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:03,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:03,030 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:03,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-01-10 07:14:03,033 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 [2025-01-10 07:14:03,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:03,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:03,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:03,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:03,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:03,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:03,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:03,046 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:14:03,048 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:14:03,048 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:14:03,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:03,050 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:03,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-01-10 07:14:03,058 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:14:03,058 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:14:03,058 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:14:03,058 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2025-01-10 07:14:03,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-01-10 07:14:03,064 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:14:03,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:03,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 07:14:03,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 07:14:03,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:03,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 07:14:03,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:03,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:03,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:03,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:03,131 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:14:03,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:03,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:03,145 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 [2025-01-10 07:14:03,145 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 61 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:14:03,168 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 61 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 69 states and 95 transitions. Complement of second has 5 states. [2025-01-10 07:14:03,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-01-10 07:14:03,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:14:03,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2025-01-10 07:14:03,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 12 letters. Loop has 2 letters. [2025-01-10 07:14:03,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:03,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 14 letters. Loop has 2 letters. [2025-01-10 07:14:03,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:03,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 12 letters. Loop has 4 letters. [2025-01-10 07:14:03,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:03,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 95 transitions. [2025-01-10 07:14:03,172 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2025-01-10 07:14:03,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 62 states and 86 transitions. [2025-01-10 07:14:03,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2025-01-10 07:14:03,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2025-01-10 07:14:03,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 86 transitions. [2025-01-10 07:14:03,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:03,173 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 86 transitions. [2025-01-10 07:14:03,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 86 transitions. [2025-01-10 07:14:03,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 45. [2025-01-10 07:14:03,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 44 states have internal predecessors, (64), 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) [2025-01-10 07:14:03,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2025-01-10 07:14:03,176 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 64 transitions. [2025-01-10 07:14:03,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:14:03,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 07:14:03,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 07:14:03,177 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-01-10 07:14:03,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:14:03,202 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2025-01-10 07:14:03,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 63 transitions. [2025-01-10 07:14:03,203 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2025-01-10 07:14:03,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 63 transitions. [2025-01-10 07:14:03,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2025-01-10 07:14:03,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2025-01-10 07:14:03,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 63 transitions. [2025-01-10 07:14:03,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:03,204 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2025-01-10 07:14:03,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 63 transitions. [2025-01-10 07:14:03,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2025-01-10 07:14:03,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4) internal successors, (63), 44 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:14:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2025-01-10 07:14:03,207 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2025-01-10 07:14:03,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 07:14:03,210 INFO L432 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2025-01-10 07:14:03,211 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-01-10 07:14:03,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2025-01-10 07:14:03,211 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2025-01-10 07:14:03,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:14:03,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:14:03,212 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:14:03,212 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 07:14:03,212 INFO L752 eck$LassoCheckResult]: Stem: "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);" "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;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" [2025-01-10 07:14:03,212 INFO L754 eck$LassoCheckResult]: Loop: "assume base2flt_~m#1 % 4294967296 >= 33554432;" "assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2;" [2025-01-10 07:14:03,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:03,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1166355820, now seen corresponding path program 1 times [2025-01-10 07:14:03,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:03,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336839850] [2025-01-10 07:14:03,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:03,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:03,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 07:14:03,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 07:14:03,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:03,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:03,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:14:03,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336839850] [2025-01-10 07:14:03,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336839850] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 07:14:03,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767461016] [2025-01-10 07:14:03,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:03,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 07:14:03,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:03,311 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 07:14:03,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-01-10 07:14:03,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 07:14:03,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 07:14:03,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:03,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:14:03,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:03,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:03,366 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 07:14:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:03,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767461016] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 07:14:03,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 07:14:03,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-01-10 07:14:03,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781571841] [2025-01-10 07:14:03,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 07:14:03,394 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-01-10 07:14:03,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:03,395 INFO L85 PathProgramCache]: Analyzing trace with hash 7017, now seen corresponding path program 1 times [2025-01-10 07:14:03,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:03,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341483562] [2025-01-10 07:14:03,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:03,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:03,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:03,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:03,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:03,399 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:14:03,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:03,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:03,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:03,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:14:03,426 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:03,426 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:03,426 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:03,426 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:03,426 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:14:03,426 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,426 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:03,426 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:03,426 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2025-01-10 07:14:03,426 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:03,426 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:03,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:03,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:03,493 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:03,493 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:14:03,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:03,495 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:03,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-01-10 07:14:03,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:14:03,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:03,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:03,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:03,519 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:03,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-01-10 07:14:03,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:14:03,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:03,544 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:14:03,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:03,548 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:03,549 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:03,549 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:03,549 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:03,549 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:14:03,549 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,549 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:03,549 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:03,549 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2025-01-10 07:14:03,549 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:03,549 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:03,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:03,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:03,631 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:03,631 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:14:03,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:03,634 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:03,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-01-10 07:14:03,640 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 [2025-01-10 07:14:03,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:03,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:03,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:03,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:03,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:03,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:03,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:03,653 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:14:03,655 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:14:03,655 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:14:03,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:03,659 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:03,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-01-10 07:14:03,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:14:03,668 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:14:03,668 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:14:03,668 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2025-01-10 07:14:03,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:03,676 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:14:03,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:03,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 07:14:03,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 07:14:03,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:03,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 07:14:03,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:03,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:03,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:03,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:03,731 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:14:03,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:03,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:03,733 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 [2025-01-10 07:14:03,734 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:14:03,752 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 70 states and 98 transitions. Complement of second has 5 states. [2025-01-10 07:14:03,753 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 [2025-01-10 07:14:03,753 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) [2025-01-10 07:14:03,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2025-01-10 07:14:03,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 14 letters. Loop has 2 letters. [2025-01-10 07:14:03,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:03,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 16 letters. Loop has 2 letters. [2025-01-10 07:14:03,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:03,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 14 letters. Loop has 4 letters. [2025-01-10 07:14:03,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:03,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 98 transitions. [2025-01-10 07:14:03,755 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2025-01-10 07:14:03,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 63 states and 88 transitions. [2025-01-10 07:14:03,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2025-01-10 07:14:03,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2025-01-10 07:14:03,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 88 transitions. [2025-01-10 07:14:03,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:03,755 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 88 transitions. [2025-01-10 07:14:03,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 88 transitions. [2025-01-10 07:14:03,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 47. [2025-01-10 07:14:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.425531914893617) internal successors, (67), 46 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) [2025-01-10 07:14:03,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2025-01-10 07:14:03,759 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 67 transitions. [2025-01-10 07:14:03,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:14:03,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 07:14:03,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2025-01-10 07:14:03,760 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2025-01-10 07:14:03,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:03,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:03,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:14:03,831 INFO L93 Difference]: Finished difference Result 77 states and 111 transitions. [2025-01-10 07:14:03,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 111 transitions. [2025-01-10 07:14:03,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-01-10 07:14:03,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 74 states and 108 transitions. [2025-01-10 07:14:03,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2025-01-10 07:14:03,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2025-01-10 07:14:03,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 108 transitions. [2025-01-10 07:14:03,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:03,832 INFO L218 hiAutomatonCegarLoop]: Abstraction has 74 states and 108 transitions. [2025-01-10 07:14:03,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 108 transitions. [2025-01-10 07:14:03,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 58. [2025-01-10 07:14:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 57 states have internal predecessors, (84), 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) [2025-01-10 07:14:03,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2025-01-10 07:14:03,834 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 84 transitions. [2025-01-10 07:14:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 07:14:03,835 INFO L432 stractBuchiCegarLoop]: Abstraction has 58 states and 84 transitions. [2025-01-10 07:14:03,835 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-01-10 07:14:03,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 84 transitions. [2025-01-10 07:14:03,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-01-10 07:14:03,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:14:03,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:14:03,836 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] [2025-01-10 07:14:03,836 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 07:14:03,836 INFO L752 eck$LassoCheckResult]: Stem: "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);" "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;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_#t~bitwise4#1 := 0;" "base2flt_~m#1 := base2flt_#t~bitwise4#1;havoc base2flt_#t~bitwise4#1;" "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);" "base2flt_~res~0#1 := base2flt_#t~bitwise5#1;havoc base2flt_#t~bitwise5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "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;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" [2025-01-10 07:14:03,836 INFO L754 eck$LassoCheckResult]: Loop: "assume base2flt_~m#1 % 4294967296 >= 33554432;" "assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2;" [2025-01-10 07:14:03,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:03,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1224992844, now seen corresponding path program 1 times [2025-01-10 07:14:03,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:03,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549868951] [2025-01-10 07:14:03,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:03,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:03,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 07:14:03,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 07:14:03,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:03,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:14:03,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549868951] [2025-01-10 07:14:03,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549868951] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:14:03,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:14:03,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 07:14:03,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248675393] [2025-01-10 07:14:03,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:14:03,890 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-01-10 07:14:03,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:03,890 INFO L85 PathProgramCache]: Analyzing trace with hash 9449, now seen corresponding path program 1 times [2025-01-10 07:14:03,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:03,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795360727] [2025-01-10 07:14:03,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:03,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:03,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:03,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:03,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:03,899 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:14:03,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:03,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:03,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:03,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:03,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:14:03,936 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:03,936 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:03,936 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:03,936 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:03,936 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:14:03,936 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:03,936 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:03,936 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:03,936 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2025-01-10 07:14:03,936 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:03,936 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:03,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:03,945 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:04,014 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:04,015 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:14:04,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,020 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-01-10 07:14:04,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:14:04,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:04,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:04,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,052 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-01-10 07:14:04,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:14:04,053 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:04,071 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:14:04,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-01-10 07:14:04,078 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:04,078 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:04,078 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:04,078 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:04,078 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:14:04,078 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,078 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:04,078 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:04,078 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2025-01-10 07:14:04,078 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:04,078 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:04,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:04,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:04,146 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:04,146 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:14:04,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,149 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-01-10 07:14:04,151 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 [2025-01-10 07:14:04,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:04,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:04,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:04,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:04,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:04,166 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:04,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:04,168 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:14:04,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-01-10 07:14:04,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,188 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-01-10 07:14:04,195 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 [2025-01-10 07:14:04,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:04,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:04,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:04,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:04,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:04,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:04,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:04,212 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:14:04,214 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:14:04,215 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:14:04,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,217 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-01-10 07:14:04,220 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:14:04,220 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:14:04,220 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:14:04,220 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2025-01-10 07:14:04,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-01-10 07:14:04,227 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:14:04,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:04,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 07:14:04,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 07:14:04,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:04,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:04,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 07:14:04,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:04,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:04,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:04,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:04,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:04,272 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:14:04,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:04,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:04,275 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 [2025-01-10 07:14:04,275 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 84 transitions. cyclomatic complexity: 31 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2025-01-10 07:14:04,279 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 84 transitions. cyclomatic complexity: 31. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) Result 60 states and 87 transitions. Complement of second has 4 states. [2025-01-10 07:14:04,279 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 [2025-01-10 07:14:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2025-01-10 07:14:04,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2025-01-10 07:14:04,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 20 letters. Loop has 2 letters. [2025-01-10 07:14:04,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:04,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 22 letters. Loop has 2 letters. [2025-01-10 07:14:04,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:04,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 20 letters. Loop has 4 letters. [2025-01-10 07:14:04,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:04,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 87 transitions. [2025-01-10 07:14:04,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 07:14:04,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 56 states and 81 transitions. [2025-01-10 07:14:04,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2025-01-10 07:14:04,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2025-01-10 07:14:04,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2025-01-10 07:14:04,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:04,281 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 81 transitions. [2025-01-10 07:14:04,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2025-01-10 07:14:04,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-01-10 07:14:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 55 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) [2025-01-10 07:14:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2025-01-10 07:14:04,283 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 81 transitions. [2025-01-10 07:14:04,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:14:04,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 07:14:04,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 07:14:04,283 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2025-01-10 07:14:04,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:14:04,330 INFO L93 Difference]: Finished difference Result 61 states and 85 transitions. [2025-01-10 07:14:04,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 85 transitions. [2025-01-10 07:14:04,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 07:14:04,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 85 transitions. [2025-01-10 07:14:04,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2025-01-10 07:14:04,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2025-01-10 07:14:04,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 85 transitions. [2025-01-10 07:14:04,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:14:04,331 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 85 transitions. [2025-01-10 07:14:04,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 85 transitions. [2025-01-10 07:14:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2025-01-10 07:14:04,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 56 states have internal predecessors, (80), 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) [2025-01-10 07:14:04,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2025-01-10 07:14:04,332 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 80 transitions. [2025-01-10 07:14:04,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 07:14:04,333 INFO L432 stractBuchiCegarLoop]: Abstraction has 57 states and 80 transitions. [2025-01-10 07:14:04,333 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-01-10 07:14:04,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 80 transitions. [2025-01-10 07:14:04,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 07:14:04,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:14:04,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:14:04,334 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] [2025-01-10 07:14:04,334 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 07:14:04,334 INFO L752 eck$LassoCheckResult]: Stem: "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);" "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;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume 4278190079 == base2flt_~m#1 % 4294967296;base2flt_#t~bitwise4#1 := base2flt_~m#1;" "base2flt_~m#1 := base2flt_#t~bitwise4#1;havoc base2flt_#t~bitwise4#1;" "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);" "base2flt_~res~0#1 := base2flt_#t~bitwise5#1;havoc base2flt_#t~bitwise5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "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;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "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;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2025-01-10 07:14:04,334 INFO L754 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2025-01-10 07:14:04,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:04,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1699948060, now seen corresponding path program 1 times [2025-01-10 07:14:04,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:04,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145839782] [2025-01-10 07:14:04,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:04,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:04,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-10 07:14:04,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-10 07:14:04,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:04,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:04,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:14:04,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145839782] [2025-01-10 07:14:04,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145839782] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:14:04,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:14:04,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 07:14:04,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175395113] [2025-01-10 07:14:04,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:14:04,409 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-01-10 07:14:04,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:04,409 INFO L85 PathProgramCache]: Analyzing trace with hash 8868, now seen corresponding path program 1 times [2025-01-10 07:14:04,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:14:04,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317340915] [2025-01-10 07:14:04,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:14:04,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:14:04,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:04,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:04,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:04,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:04,413 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:14:04,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:04,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:04,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:04,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:14:04,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:14:04,438 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:04,438 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:04,438 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:04,438 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:04,439 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:14:04,439 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,439 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:04,439 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:04,439 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2025-01-10 07:14:04,439 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:04,439 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:04,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:04,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:04,514 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:04,515 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:14:04,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,517 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-01-10 07:14:04,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:14:04,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:04,534 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-01-10 07:14:04,534 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: [] [2025-01-10 07:14:04,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-01-10 07:14:04,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,541 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-01-10 07:14:04,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:14:04,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:04,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2025-01-10 07:14:04,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,563 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-01-10 07:14:04,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:14:04,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:14:04,597 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:14:04,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:04,601 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:14:04,602 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:14:04,602 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:14:04,602 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:14:04,602 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:14:04,602 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,602 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:14:04,602 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:14:04,602 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2025-01-10 07:14:04,602 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:14:04,602 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:14:04,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:04,612 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:14:04,680 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:14:04,681 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:14:04,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,683 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-01-10 07:14:04,685 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 [2025-01-10 07:14:04,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:04,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:04,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:04,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:04,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:04,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:04,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:04,700 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:14:04,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:04,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,708 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-01-10 07:14:04,711 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 [2025-01-10 07:14:04,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:14:04,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:14:04,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:14:04,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:14:04,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:14:04,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:14:04,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:14:04,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:14:04,726 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:14:04,726 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:14:04,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:14:04,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:14:04,729 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:14:04,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-01-10 07:14:04,734 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:14:04,734 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:14:04,734 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:14:04,734 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2025-01-10 07:14:04,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:04,741 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:14:04,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:14:04,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-10 07:14:04,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-10 07:14:04,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:04,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:04,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 07:14:04,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:04,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 07:14:04,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 07:14:04,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:14:04,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:14:04,805 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:14:04,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:14:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:14:04,818 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 [2025-01-10 07:14:04,818 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 80 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2025-01-10 07:14:04,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 80 transitions. cyclomatic complexity: 27. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 59 states and 82 transitions. Complement of second has 4 states. [2025-01-10 07:14:04,825 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 [2025-01-10 07:14:04,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2025-01-10 07:14:04,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2025-01-10 07:14:04,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 21 letters. Loop has 2 letters. [2025-01-10 07:14:04,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:04,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 23 letters. Loop has 2 letters. [2025-01-10 07:14:04,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:04,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 21 letters. Loop has 4 letters. [2025-01-10 07:14:04,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:14:04,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 82 transitions. [2025-01-10 07:14:04,829 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 07:14:04,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 0 states and 0 transitions. [2025-01-10 07:14:04,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-01-10 07:14:04,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-01-10 07:14:04,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-01-10 07:14:04,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:14:04,829 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:14:04,829 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:14:04,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:14:04,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 07:14:04,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 07:14:04,830 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2025-01-10 07:14:04,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:14:04,830 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-01-10 07:14:04,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-01-10 07:14:04,830 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 07:14:04,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-01-10 07:14:04,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-01-10 07:14:04,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-01-10 07:14:04,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-01-10 07:14:04,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:14:04,830 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:14:04,830 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:14:04,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-10 07:14:04,831 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:14:04,831 INFO L338 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2025-01-10 07:14:04,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-01-10 07:14:04,831 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 07:14:04,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-01-10 07:14:04,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 07:14:04 BoogieIcfgContainer [2025-01-10 07:14:04,837 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 07:14:04,838 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 07:14:04,838 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 07:14:04,838 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 07:14:04,838 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:14:00" (3/4) ... [2025-01-10 07:14:04,840 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 07:14:04,840 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 07:14:04,841 INFO L158 Benchmark]: Toolchain (without parser) took 5123.97ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 54.4MB in the end (delta: 78.4MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2025-01-10 07:14:04,841 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 226.5MB. Free memory is still 147.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:14:04,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.83ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 119.1MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 07:14:04,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.64ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 116.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:14:04,841 INFO L158 Benchmark]: Boogie Preprocessor took 55.97ms. Allocated memory is still 167.8MB. Free memory was 116.8MB in the beginning and 114.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:14:04,842 INFO L158 Benchmark]: RCFGBuilder took 541.15ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 85.5MB in the end (delta: 29.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-10 07:14:04,842 INFO L158 Benchmark]: BuchiAutomizer took 4240.02ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 55.6MB in the end (delta: 29.9MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2025-01-10 07:14:04,842 INFO L158 Benchmark]: Witness Printer took 2.68ms. Allocated memory is still 167.8MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:14:04,843 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 226.5MB. Free memory is still 147.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.83ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 119.1MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.64ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 116.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.97ms. Allocated memory is still 167.8MB. Free memory was 116.8MB in the beginning and 114.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 541.15ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 85.5MB in the end (delta: 29.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4240.02ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 55.6MB in the end (delta: 29.9MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 2.68ms. Allocated memory is still 167.8MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 46.1kB). 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) + 255) and consists of 4 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 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. 6 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 8 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. 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, 137 StatesRemovedByMinimization, 8 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, 628 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 621 mSDsluCounter, 978 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 167 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 811 mSDtfsCounter, 295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp60 ukn100 mio100 lsp100 div616 bol100 ite100 ukn100 eq134 hnf96 smp41 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 62ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-01-10 07:14:04,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-01-10 07:14:05,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:05,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-01-10 07:14:05,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE