./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 c00e63dc 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-?-c00e63d-m [2025-02-06 19:12:22,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:12:22,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-02-06 19:12:22,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:12:22,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:12:22,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:12:22,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:12:22,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:12:22,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:12:22,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:12:22,216 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:12:22,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:12:22,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:12:22,217 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:12:22,217 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:12:22,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:12:22,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:12:22,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:12:22,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:12:22,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:12:22,219 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 19:12:22,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:12:22,219 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:12:22,219 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:12:22,219 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:12:22,219 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:12:22,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:12:22,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:12:22,220 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:12:22,220 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:12:22,220 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 [2025-02-06 19:12:22,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:12:22,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:12:22,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:12:22,458 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:12:22,459 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:12:22,460 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2025-02-06 19:12:23,721 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/725d6c196/f0599d87838f461a99768df3e588abb0/FLAG1163ea233 [2025-02-06 19:12:23,947 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:12:23,948 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2025-02-06 19:12:23,956 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/725d6c196/f0599d87838f461a99768df3e588abb0/FLAG1163ea233 [2025-02-06 19:12:23,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/725d6c196/f0599d87838f461a99768df3e588abb0 [2025-02-06 19:12:23,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:12:23,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:12:23,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:12:23,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:12:23,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:12:23,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:12:23" (1/1) ... [2025-02-06 19:12:23,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316656cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:23, skipping insertion in model container [2025-02-06 19:12:23,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:12:23" (1/1) ... [2025-02-06 19:12:23,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:12:24,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:12:24,152 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:12:24,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:12:24,183 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:12:24,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24 WrapperNode [2025-02-06 19:12:24,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:12:24,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:12:24,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:12:24,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:12:24,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,214 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 11, calls inlined = 9, statements flattened = 352 [2025-02-06 19:12:24,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:12:24,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:12:24,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:12:24,215 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:12:24,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,231 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]. [2025-02-06 19:12:24,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,235 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:12:24,240 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:12:24,240 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:12:24,240 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:12:24,240 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (1/1) ... [2025-02-06 19:12:24,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:24,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:24,267 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) [2025-02-06 19:12:24,270 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 [2025-02-06 19:12:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 19:12:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 19:12:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:12:24,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:12:24,342 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:12:24,344 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:12:24,749 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2025-02-06 19:12:24,749 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:12:24,775 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:12:24,776 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:12:24,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:12:24 BoogieIcfgContainer [2025-02-06 19:12:24,776 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:12:24,777 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:12:24,777 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:12:24,781 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:12:24,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:12:24,781 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:12:23" (1/3) ... [2025-02-06 19:12:24,782 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ce35d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:12:24, skipping insertion in model container [2025-02-06 19:12:24,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:12:24,782 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:24" (2/3) ... [2025-02-06 19:12:24,782 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ce35d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:12:24, skipping insertion in model container [2025-02-06 19:12:24,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:12:24,782 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:12:24" (3/3) ... [2025-02-06 19:12:24,783 INFO L363 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2025-02-06 19:12:24,814 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:12:24,814 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:12:24,814 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:12:24,814 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:12:24,814 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:12:24,814 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:12:24,814 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:12:24,814 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:12:24,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 121 states, 116 states have (on average 1.5948275862068966) internal successors, (185), 120 states have internal predecessors, (185), 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) [2025-02-06 19:12:24,830 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2025-02-06 19:12:24,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:24,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:24,834 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-06 19:12:24,834 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:12:24,835 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:12:24,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 121 states, 116 states have (on average 1.5948275862068966) internal successors, (185), 120 states have internal predecessors, (185), 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) [2025-02-06 19:12:24,839 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2025-02-06 19:12:24,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:24,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:24,839 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-06 19:12:24,839 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:12:24,844 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2025-02-06 19:12:24,844 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "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;" [2025-02-06 19:12:24,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:24,848 INFO L85 PathProgramCache]: Analyzing trace with hash 8587708, now seen corresponding path program 1 times [2025-02-06 19:12:24,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:24,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533167402] [2025-02-06 19:12:24,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:24,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:24,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:12:24,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:12:24,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:24,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:25,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:12:25,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533167402] [2025-02-06 19:12:25,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533167402] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:12:25,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:12:25,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 19:12:25,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190293273] [2025-02-06 19:12:25,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:12:25,036 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-06 19:12:25,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:25,038 INFO L85 PathProgramCache]: Analyzing trace with hash 259136, now seen corresponding path program 1 times [2025-02-06 19:12:25,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:25,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159216744] [2025-02-06 19:12:25,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:25,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:25,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:25,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:25,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:25,046 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:25,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:25,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:25,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:25,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:25,108 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:25,109 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:25,109 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:25,109 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:25,109 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:25,110 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,110 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:25,110 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:25,110 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2025-02-06 19:12:25,112 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:25,112 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:25,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:25,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:25,272 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:25,272 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:25,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:25,276 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) [2025-02-06 19:12:25,277 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 [2025-02-06 19:12:25,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:25,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:25,304 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 [2025-02-06 19:12:25,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:25,307 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) [2025-02-06 19:12:25,311 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 [2025-02-06 19:12:25,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:25,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:25,337 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:25,344 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 [2025-02-06 19:12:25,344 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:25,344 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:25,344 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:25,344 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:25,344 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:25,344 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,344 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:25,344 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:25,344 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2025-02-06 19:12:25,344 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:25,344 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:25,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:25,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:25,440 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:25,443 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:25,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:25,446 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) [2025-02-06 19:12:25,447 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 [2025-02-06 19:12:25,448 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 [2025-02-06 19:12:25,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:25,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:25,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:25,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:25,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:25,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:25,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:25,465 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:25,467 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:25,469 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:25,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:25,471 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) [2025-02-06 19:12:25,474 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 [2025-02-06 19:12:25,474 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:25,474 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:25,475 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:25,475 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2025-02-06 19:12:25,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:25,486 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:25,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:25,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:12:25,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:12:25,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:25,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:25,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:25,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:25,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:25,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:25,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:25,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:25,558 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-06 19:12:25,560 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 121 states, 116 states have (on average 1.5948275862068966) internal successors, (185), 120 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2025-02-06 19:12:25,630 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 121 states, 116 states have (on average 1.5948275862068966) internal successors, (185), 120 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 353 states and 530 transitions. Complement of second has 6 states. [2025-02-06 19:12:25,631 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 [2025-02-06 19:12:25,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2025-02-06 19:12:25,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2025-02-06 19:12:25,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 348 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-06 19:12:25,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:25,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 348 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-06 19:12:25,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:25,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 348 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-06 19:12:25,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:25,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 353 states and 530 transitions. [2025-02-06 19:12:25,645 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2025-02-06 19:12:25,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 353 states to 114 states and 164 transitions. [2025-02-06 19:12:25,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 108 [2025-02-06 19:12:25,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 111 [2025-02-06 19:12:25,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 164 transitions. [2025-02-06 19:12:25,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:25,649 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 164 transitions. [2025-02-06 19:12:25,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 164 transitions. [2025-02-06 19:12:25,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 92. [2025-02-06 19:12:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.4782608695652173) internal successors, (136), 91 states have internal predecessors, (136), 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) [2025-02-06 19:12:25,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 136 transitions. [2025-02-06 19:12:25,665 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 136 transitions. [2025-02-06 19:12:25,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:12:25,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:12:25,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:12:25,667 INFO L87 Difference]: Start difference. First operand 92 states and 136 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) [2025-02-06 19:12:25,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:12:25,724 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions. [2025-02-06 19:12:25,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 68 transitions. [2025-02-06 19:12:25,725 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2025-02-06 19:12:25,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 68 transitions. [2025-02-06 19:12:25,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2025-02-06 19:12:25,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2025-02-06 19:12:25,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 68 transitions. [2025-02-06 19:12:25,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:12:25,726 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2025-02-06 19:12:25,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 68 transitions. [2025-02-06 19:12:25,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2025-02-06 19:12:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 48 states have internal predecessors, (68), 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) [2025-02-06 19:12:25,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2025-02-06 19:12:25,727 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2025-02-06 19:12:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:12:25,728 INFO L432 stractBuchiCegarLoop]: Abstraction has 49 states and 68 transitions. [2025-02-06 19:12:25,728 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:12:25,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 68 transitions. [2025-02-06 19:12:25,729 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2025-02-06 19:12:25,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:25,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:25,729 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:25,729 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:12:25,730 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;" [2025-02-06 19:12:25,730 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "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;" [2025-02-06 19:12:25,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1863390416, now seen corresponding path program 1 times [2025-02-06 19:12:25,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:25,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949229810] [2025-02-06 19:12:25,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:25,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:25,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:25,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:25,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:25,737 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:25,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:25,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:25,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:25,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:25,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:25,743 INFO L85 PathProgramCache]: Analyzing trace with hash 217430, now seen corresponding path program 1 times [2025-02-06 19:12:25,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:25,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053070836] [2025-02-06 19:12:25,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:25,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:25,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:25,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:25,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:25,747 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:25,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:25,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:25,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:25,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:25,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:25,750 INFO L85 PathProgramCache]: Analyzing trace with hash 188605383, now seen corresponding path program 1 times [2025-02-06 19:12:25,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:25,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596844494] [2025-02-06 19:12:25,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:25,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:25,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 19:12:25,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 19:12:25,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:25,758 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:25,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 19:12:25,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 19:12:25,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:25,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:25,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:25,787 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:25,787 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:25,787 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:25,787 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:25,788 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:25,788 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,788 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:25,788 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:25,788 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2025-02-06 19:12:25,788 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:25,788 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:25,788 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:25,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:25,873 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:25,873 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:25,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:25,876 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) [2025-02-06 19:12:25,878 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 [2025-02-06 19:12:25,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:25,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:25,896 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:12:25,897 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: [] [2025-02-06 19:12:25,901 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 [2025-02-06 19:12:25,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:25,903 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) [2025-02-06 19:12:25,904 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 [2025-02-06 19:12:25,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:25,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:25,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:25,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:25,928 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) [2025-02-06 19:12:25,931 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 [2025-02-06 19:12:25,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:25,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:25,953 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:25,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-06 19:12:25,957 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:25,957 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:25,957 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:25,957 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:25,957 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:25,957 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:25,957 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:25,957 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:25,957 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2025-02-06 19:12:25,957 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:25,957 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:25,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:25,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:26,048 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:26,048 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:26,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,050 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) [2025-02-06 19:12:26,054 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 [2025-02-06 19:12:26,055 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 [2025-02-06 19:12:26,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:26,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:26,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:26,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:26,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:26,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:26,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:26,069 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:12:26,075 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 [2025-02-06 19:12:26,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,077 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) [2025-02-06 19:12:26,078 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 [2025-02-06 19:12:26,080 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 [2025-02-06 19:12:26,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:26,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:26,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:26,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:26,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:26,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:26,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:26,092 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:26,094 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:26,095 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:26,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,100 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) [2025-02-06 19:12:26,100 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 [2025-02-06 19:12:26,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:26,101 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:26,101 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:26,101 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2025-02-06 19:12:26,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-06 19:12:26,108 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:26,134 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 [2025-02-06 19:12:26,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:26,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-02-06 19:12:26,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:26,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:26,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:26,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:26,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:26,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:26,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:26,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:26,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:26,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:26,173 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 [2025-02-06 19:12:26,174 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 68 transitions. cyclomatic complexity: 25 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:26,195 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 68 transitions. cyclomatic complexity: 25. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 120 transitions. Complement of second has 5 states. [2025-02-06 19:12:26,196 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 [2025-02-06 19:12:26,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:26,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2025-02-06 19:12:26,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-06 19:12:26,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:26,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 10 letters. Loop has 3 letters. [2025-02-06 19:12:26,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:26,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 7 letters. Loop has 6 letters. [2025-02-06 19:12:26,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:26,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 120 transitions. [2025-02-06 19:12:26,198 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2025-02-06 19:12:26,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 81 states and 111 transitions. [2025-02-06 19:12:26,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2025-02-06 19:12:26,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2025-02-06 19:12:26,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 111 transitions. [2025-02-06 19:12:26,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:26,199 INFO L218 hiAutomatonCegarLoop]: Abstraction has 81 states and 111 transitions. [2025-02-06 19:12:26,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 111 transitions. [2025-02-06 19:12:26,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 52. [2025-02-06 19:12:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 51 states have internal predecessors, (72), 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) [2025-02-06 19:12:26,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2025-02-06 19:12:26,201 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 72 transitions. [2025-02-06 19:12:26,201 INFO L432 stractBuchiCegarLoop]: Abstraction has 52 states and 72 transitions. [2025-02-06 19:12:26,201 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-06 19:12:26,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 72 transitions. [2025-02-06 19:12:26,202 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2025-02-06 19:12:26,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:26,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:26,202 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:26,202 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:12:26,202 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);" [2025-02-06 19:12:26,202 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "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;" [2025-02-06 19:12:26,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:26,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1863390415, now seen corresponding path program 1 times [2025-02-06 19:12:26,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:26,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478069558] [2025-02-06 19:12:26,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:26,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:26,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:26,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:26,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:26,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:12:26,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478069558] [2025-02-06 19:12:26,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478069558] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:12:26,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:12:26,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 19:12:26,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565741433] [2025-02-06 19:12:26,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:12:26,248 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-06 19:12:26,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash 227332, now seen corresponding path program 1 times [2025-02-06 19:12:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:26,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946985979] [2025-02-06 19:12:26,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:26,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:26,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:26,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:26,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:26,253 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:26,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:26,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:26,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:26,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:26,278 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:26,278 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:26,278 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:26,278 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:26,278 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:26,278 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,279 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:26,279 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:26,279 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2025-02-06 19:12:26,279 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:26,279 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:26,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:26,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:26,346 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:26,346 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:26,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,348 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) [2025-02-06 19:12:26,353 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 [2025-02-06 19:12:26,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:26,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:26,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:26,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,373 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) [2025-02-06 19:12:26,378 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 [2025-02-06 19:12:26,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:26,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:26,398 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:26,407 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 [2025-02-06 19:12:26,407 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:26,407 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:26,407 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:26,407 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:26,407 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:26,407 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,407 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:26,407 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:26,407 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2025-02-06 19:12:26,407 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:26,407 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:26,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:26,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:26,476 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:26,476 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:26,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,478 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) [2025-02-06 19:12:26,479 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 [2025-02-06 19:12:26,481 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 [2025-02-06 19:12:26,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:26,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:26,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:26,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:26,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:26,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:26,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:26,495 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:12:26,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:26,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,503 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) [2025-02-06 19:12:26,504 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 [2025-02-06 19:12:26,505 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 [2025-02-06 19:12:26,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:26,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:26,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:26,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:26,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:26,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:26,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:26,518 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:26,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:26,520 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:26,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,522 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) [2025-02-06 19:12:26,531 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 [2025-02-06 19:12:26,531 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:26,531 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:26,531 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:26,531 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2025-02-06 19:12:26,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:26,538 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:26,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:26,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:26,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:26,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:26,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:26,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:26,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:26,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:26,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:26,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:26,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:26,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:26,572 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 [2025-02-06 19:12:26,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 72 transitions. cyclomatic complexity: 26 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:26,583 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 72 transitions. cyclomatic complexity: 26. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 83 states and 114 transitions. Complement of second has 5 states. [2025-02-06 19:12:26,584 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 [2025-02-06 19:12:26,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:26,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2025-02-06 19:12:26,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-06 19:12:26,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:26,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 10 letters. Loop has 3 letters. [2025-02-06 19:12:26,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:26,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 7 letters. Loop has 6 letters. [2025-02-06 19:12:26,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:26,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 114 transitions. [2025-02-06 19:12:26,586 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2025-02-06 19:12:26,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 83 states and 114 transitions. [2025-02-06 19:12:26,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2025-02-06 19:12:26,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2025-02-06 19:12:26,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 114 transitions. [2025-02-06 19:12:26,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:26,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 83 states and 114 transitions. [2025-02-06 19:12:26,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 114 transitions. [2025-02-06 19:12:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 55. [2025-02-06 19:12:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 54 states have internal predecessors, (76), 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) [2025-02-06 19:12:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions. [2025-02-06 19:12:26,594 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 76 transitions. [2025-02-06 19:12:26,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:12:26,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:12:26,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:12:26,595 INFO L87 Difference]: Start difference. First operand 55 states and 76 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) [2025-02-06 19:12:26,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:12:26,639 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2025-02-06 19:12:26,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 70 transitions. [2025-02-06 19:12:26,639 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2025-02-06 19:12:26,640 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 70 transitions. [2025-02-06 19:12:26,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2025-02-06 19:12:26,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2025-02-06 19:12:26,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 70 transitions. [2025-02-06 19:12:26,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:26,640 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 70 transitions. [2025-02-06 19:12:26,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 70 transitions. [2025-02-06 19:12:26,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2025-02-06 19:12:26,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.346938775510204) internal successors, (66), 48 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2025-02-06 19:12:26,642 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 66 transitions. [2025-02-06 19:12:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:12:26,643 INFO L432 stractBuchiCegarLoop]: Abstraction has 49 states and 66 transitions. [2025-02-06 19:12:26,643 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-06 19:12:26,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 66 transitions. [2025-02-06 19:12:26,644 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2025-02-06 19:12:26,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:26,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:26,644 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:26,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:12:26,644 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 true;" "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);" [2025-02-06 19:12:26,644 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "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;" [2025-02-06 19:12:26,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:26,645 INFO L85 PathProgramCache]: Analyzing trace with hash 923580904, now seen corresponding path program 1 times [2025-02-06 19:12:26,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:26,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299142322] [2025-02-06 19:12:26,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:26,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:26,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 19:12:26,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 19:12:26,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:26,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:12:26,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299142322] [2025-02-06 19:12:26,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299142322] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:12:26,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:12:26,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 19:12:26,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547718057] [2025-02-06 19:12:26,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:12:26,678 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-06 19:12:26,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:26,678 INFO L85 PathProgramCache]: Analyzing trace with hash 185626, now seen corresponding path program 1 times [2025-02-06 19:12:26,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:26,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980482321] [2025-02-06 19:12:26,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:26,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:26,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:26,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:26,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:26,682 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:26,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:26,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:26,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:26,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:26,714 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:26,714 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:26,714 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:26,714 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:26,715 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:26,715 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,715 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:26,715 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:26,715 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2025-02-06 19:12:26,715 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:26,715 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:26,715 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:26,720 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:26,780 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:26,781 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:26,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,783 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) [2025-02-06 19:12:26,786 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 [2025-02-06 19:12:26,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:26,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:26,804 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 [2025-02-06 19:12:26,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,806 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) [2025-02-06 19:12:26,807 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 [2025-02-06 19:12:26,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:26,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:26,831 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:26,840 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 [2025-02-06 19:12:26,840 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:26,840 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:26,841 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:26,841 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:26,841 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:26,841 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,841 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:26,841 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:26,841 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2025-02-06 19:12:26,841 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:26,841 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:26,842 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:26,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:26,906 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:26,906 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:26,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,908 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) [2025-02-06 19:12:26,910 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 [2025-02-06 19:12:26,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-06 19:12:26,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:26,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:26,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:26,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:26,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:26,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:26,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:26,930 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:26,933 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:26,933 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:26,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:26,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:26,939 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) [2025-02-06 19:12:26,941 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:26,941 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:26,941 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:26,941 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2025-02-06 19:12:26,941 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 [2025-02-06 19:12:26,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:26,955 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:26,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:26,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 19:12:26,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 19:12:26,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:26,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:26,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:26,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:27,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:27,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:27,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:27,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:27,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:27,014 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 [2025-02-06 19:12:27,014 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 66 transitions. cyclomatic complexity: 22 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) [2025-02-06 19:12:27,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-06 19:12:27,019 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 [2025-02-06 19:12:27,029 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 66 transitions. cyclomatic complexity: 22. 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 62 states and 81 transitions. Complement of second has 5 states. [2025-02-06 19:12:27,029 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 [2025-02-06 19:12:27,030 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) [2025-02-06 19:12:27,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-02-06 19:12:27,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 61 transitions. Stem has 13 letters. Loop has 3 letters. [2025-02-06 19:12:27,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:27,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 61 transitions. Stem has 16 letters. Loop has 3 letters. [2025-02-06 19:12:27,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:27,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 61 transitions. Stem has 13 letters. Loop has 6 letters. [2025-02-06 19:12:27,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:27,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2025-02-06 19:12:27,032 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2025-02-06 19:12:27,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 62 states and 81 transitions. [2025-02-06 19:12:27,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2025-02-06 19:12:27,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2025-02-06 19:12:27,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 81 transitions. [2025-02-06 19:12:27,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:27,032 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 81 transitions. [2025-02-06 19:12:27,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 81 transitions. [2025-02-06 19:12:27,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2025-02-06 19:12:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 51 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2025-02-06 19:12:27,035 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 70 transitions. [2025-02-06 19:12:27,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:12:27,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:12:27,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:12:27,035 INFO L87 Difference]: Start difference. First operand 52 states and 70 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:27,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:12:27,061 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2025-02-06 19:12:27,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2025-02-06 19:12:27,061 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2025-02-06 19:12:27,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 53 states and 70 transitions. [2025-02-06 19:12:27,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2025-02-06 19:12:27,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2025-02-06 19:12:27,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 70 transitions. [2025-02-06 19:12:27,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:27,062 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 70 transitions. [2025-02-06 19:12:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 70 transitions. [2025-02-06 19:12:27,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2025-02-06 19:12:27,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 51 states have internal predecessors, (69), 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) [2025-02-06 19:12:27,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2025-02-06 19:12:27,064 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 69 transitions. [2025-02-06 19:12:27,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:12:27,064 INFO L432 stractBuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2025-02-06 19:12:27,064 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-06 19:12:27,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 69 transitions. [2025-02-06 19:12:27,065 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2025-02-06 19:12:27,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:27,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:27,065 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:27,065 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:12:27,066 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 true;" "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 true;" "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;" [2025-02-06 19:12:27,066 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "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;" [2025-02-06 19:12:27,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:27,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2081334590, now seen corresponding path program 1 times [2025-02-06 19:12:27,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:27,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292910195] [2025-02-06 19:12:27,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:27,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:27,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 19:12:27,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 19:12:27,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:27,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:12:27,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292910195] [2025-02-06 19:12:27,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292910195] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 19:12:27,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018480371] [2025-02-06 19:12:27,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:27,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 19:12:27,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,125 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) [2025-02-06 19:12:27,128 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 [2025-02-06 19:12:27,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 19:12:27,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 19:12:27,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:27,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:27,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:27,181 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 19:12:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:27,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018480371] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 19:12:27,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 19:12:27,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 19:12:27,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239776320] [2025-02-06 19:12:27,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 19:12:27,200 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-06 19:12:27,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:27,201 INFO L85 PathProgramCache]: Analyzing trace with hash 175724, now seen corresponding path program 1 times [2025-02-06 19:12:27,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:27,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37330013] [2025-02-06 19:12:27,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:27,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:27,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:27,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:27,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:27,204 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:27,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:27,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:27,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:27,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:27,227 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:27,227 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:27,227 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:27,227 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:27,227 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:27,227 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,227 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:27,227 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:27,228 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2025-02-06 19:12:27,228 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:27,228 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:27,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:27,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:27,303 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:27,304 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:27,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,308 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) [2025-02-06 19:12:27,309 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 [2025-02-06 19:12:27,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:27,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:27,328 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:12:27,329 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: [] [2025-02-06 19:12:27,335 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 [2025-02-06 19:12:27,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,339 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) [2025-02-06 19:12:27,339 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 [2025-02-06 19:12:27,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:27,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:27,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-06 19:12:27,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,359 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) [2025-02-06 19:12:27,361 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 [2025-02-06 19:12:27,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:27,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:27,387 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:27,391 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 [2025-02-06 19:12:27,391 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:27,391 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:27,391 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:27,391 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:27,391 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:27,391 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,391 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:27,391 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:27,391 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2025-02-06 19:12:27,392 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:27,392 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:27,392 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:27,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:27,467 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:27,467 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:27,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,469 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) [2025-02-06 19:12:27,471 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 [2025-02-06 19:12:27,472 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 [2025-02-06 19:12:27,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:27,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:27,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:27,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:27,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:27,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:27,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:27,486 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:12:27,495 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 [2025-02-06 19:12:27,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,497 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) [2025-02-06 19:12:27,501 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 [2025-02-06 19:12:27,502 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 [2025-02-06 19:12:27,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:27,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:27,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:27,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:27,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:27,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:27,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:27,515 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:27,517 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:27,517 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:27,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,519 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) [2025-02-06 19:12:27,520 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 [2025-02-06 19:12:27,521 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:27,521 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:27,521 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:27,521 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2025-02-06 19:12:27,527 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 [2025-02-06 19:12:27,528 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:27,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:27,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 19:12:27,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 19:12:27,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:27,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:27,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:27,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:27,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:27,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:27,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:27,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:27,579 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 [2025-02-06 19:12:27,580 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:27,598 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 73 states and 94 transitions. Complement of second has 5 states. [2025-02-06 19:12:27,598 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 [2025-02-06 19:12:27,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:27,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2025-02-06 19:12:27,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 16 letters. Loop has 3 letters. [2025-02-06 19:12:27,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:27,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 19 letters. Loop has 3 letters. [2025-02-06 19:12:27,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:27,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 16 letters. Loop has 6 letters. [2025-02-06 19:12:27,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:27,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 94 transitions. [2025-02-06 19:12:27,600 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2025-02-06 19:12:27,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 66 states and 85 transitions. [2025-02-06 19:12:27,601 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2025-02-06 19:12:27,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2025-02-06 19:12:27,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 85 transitions. [2025-02-06 19:12:27,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:27,601 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 85 transitions. [2025-02-06 19:12:27,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 85 transitions. [2025-02-06 19:12:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2025-02-06 19:12:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 54 states have internal predecessors, (73), 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) [2025-02-06 19:12:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 73 transitions. [2025-02-06 19:12:27,603 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 73 transitions. [2025-02-06 19:12:27,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:12:27,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 19:12:27,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 19:12:27,603 INFO L87 Difference]: Start difference. First operand 55 states and 73 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:27,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:12:27,660 INFO L93 Difference]: Finished difference Result 92 states and 125 transitions. [2025-02-06 19:12:27,660 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 125 transitions. [2025-02-06 19:12:27,661 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-02-06 19:12:27,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 86 states and 119 transitions. [2025-02-06 19:12:27,662 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2025-02-06 19:12:27,662 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2025-02-06 19:12:27,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 119 transitions. [2025-02-06 19:12:27,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:27,662 INFO L218 hiAutomatonCegarLoop]: Abstraction has 86 states and 119 transitions. [2025-02-06 19:12:27,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 119 transitions. [2025-02-06 19:12:27,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 63. [2025-02-06 19:12:27,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 62 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) [2025-02-06 19:12:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 84 transitions. [2025-02-06 19:12:27,664 INFO L240 hiAutomatonCegarLoop]: Abstraction has 63 states and 84 transitions. [2025-02-06 19:12:27,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 19:12:27,665 INFO L432 stractBuchiCegarLoop]: Abstraction has 63 states and 84 transitions. [2025-02-06 19:12:27,665 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-06 19:12:27,665 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 84 transitions. [2025-02-06 19:12:27,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-02-06 19:12:27,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:27,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:27,666 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] [2025-02-06 19:12:27,666 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:12:27,666 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 true;" "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;" [2025-02-06 19:12:27,666 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "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;" [2025-02-06 19:12:27,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:27,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1449650968, now seen corresponding path program 1 times [2025-02-06 19:12:27,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:27,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597500449] [2025-02-06 19:12:27,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:27,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:27,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 19:12:27,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 19:12:27,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:27,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:12:27,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597500449] [2025-02-06 19:12:27,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597500449] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:12:27,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:12:27,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 19:12:27,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509058413] [2025-02-06 19:12:27,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:12:27,694 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-06 19:12:27,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:27,694 INFO L85 PathProgramCache]: Analyzing trace with hash 134018, now seen corresponding path program 1 times [2025-02-06 19:12:27,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:27,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922998629] [2025-02-06 19:12:27,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:27,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:27,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:27,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:27,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:27,697 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:27,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:27,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:27,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:27,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:27,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:27,721 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:27,721 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:27,721 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:27,721 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:27,721 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:27,721 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,721 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:27,721 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:27,721 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2025-02-06 19:12:27,721 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:27,721 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:27,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:27,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:27,779 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 [2025-02-06 19:12:27,809 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:27,809 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:27,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,811 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) [2025-02-06 19:12:27,812 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 [2025-02-06 19:12:27,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:27,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:27,828 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:12:27,828 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: [] [2025-02-06 19:12:27,831 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 [2025-02-06 19:12:27,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,833 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) [2025-02-06 19:12:27,835 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 [2025-02-06 19:12:27,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:27,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:27,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:27,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,861 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) [2025-02-06 19:12:27,862 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 [2025-02-06 19:12:27,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:27,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:27,889 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:27,893 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 [2025-02-06 19:12:27,894 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:27,894 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:27,894 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:27,894 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:27,894 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:27,894 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,894 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:27,894 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:27,894 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2025-02-06 19:12:27,894 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:27,894 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:27,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:27,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:27,973 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:27,974 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:27,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:27,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:27,976 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) [2025-02-06 19:12:27,978 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 [2025-02-06 19:12:27,979 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 [2025-02-06 19:12:27,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:27,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:27,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:27,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:27,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:27,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:27,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:27,994 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:12:28,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:28,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:28,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:28,003 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) [2025-02-06 19:12:28,004 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 [2025-02-06 19:12:28,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-06 19:12:28,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:28,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:28,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:28,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:28,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:28,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:28,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:28,017 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:28,019 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:28,020 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:28,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:28,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:28,022 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) [2025-02-06 19:12:28,023 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 [2025-02-06 19:12:28,023 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:28,023 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:28,023 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:28,023 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2025-02-06 19:12:28,029 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 [2025-02-06 19:12:28,030 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:28,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:28,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 19:12:28,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 19:12:28,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:28,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:28,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:28,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:28,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:28,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:28,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:28,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:28,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:28,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:28,120 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 [2025-02-06 19:12:28,121 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 84 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:28,129 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 84 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 67 states and 88 transitions. Complement of second has 4 states. [2025-02-06 19:12:28,129 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 [2025-02-06 19:12:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2025-02-06 19:12:28,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 63 transitions. Stem has 21 letters. Loop has 3 letters. [2025-02-06 19:12:28,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:28,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 63 transitions. Stem has 24 letters. Loop has 3 letters. [2025-02-06 19:12:28,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:28,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 63 transitions. Stem has 21 letters. Loop has 6 letters. [2025-02-06 19:12:28,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:28,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 88 transitions. [2025-02-06 19:12:28,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-06 19:12:28,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 60 states and 80 transitions. [2025-02-06 19:12:28,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2025-02-06 19:12:28,131 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2025-02-06 19:12:28,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 80 transitions. [2025-02-06 19:12:28,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:28,131 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 80 transitions. [2025-02-06 19:12:28,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 80 transitions. [2025-02-06 19:12:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2025-02-06 19:12:28,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 59 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) [2025-02-06 19:12:28,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2025-02-06 19:12:28,133 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 80 transitions. [2025-02-06 19:12:28,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:12:28,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:12:28,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:12:28,133 INFO L87 Difference]: Start difference. First operand 60 states and 80 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:28,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:12:28,177 INFO L93 Difference]: Finished difference Result 66 states and 84 transitions. [2025-02-06 19:12:28,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 84 transitions. [2025-02-06 19:12:28,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-06 19:12:28,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 84 transitions. [2025-02-06 19:12:28,178 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2025-02-06 19:12:28,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2025-02-06 19:12:28,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 84 transitions. [2025-02-06 19:12:28,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:28,178 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 84 transitions. [2025-02-06 19:12:28,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 84 transitions. [2025-02-06 19:12:28,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2025-02-06 19:12:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.3) internal successors, (78), 59 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2025-02-06 19:12:28,180 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 78 transitions. [2025-02-06 19:12:28,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:12:28,181 INFO L432 stractBuchiCegarLoop]: Abstraction has 60 states and 78 transitions. [2025-02-06 19:12:28,181 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-02-06 19:12:28,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 78 transitions. [2025-02-06 19:12:28,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-06 19:12:28,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:28,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:28,182 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:28,182 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:12:28,182 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 true;" "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);" [2025-02-06 19:12:28,182 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "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;" [2025-02-06 19:12:28,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:28,182 INFO L85 PathProgramCache]: Analyzing trace with hash -335286986, now seen corresponding path program 1 times [2025-02-06 19:12:28,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:28,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011383383] [2025-02-06 19:12:28,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:28,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 19:12:28,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 19:12:28,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:28,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:28,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:28,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:12:28,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011383383] [2025-02-06 19:12:28,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011383383] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:12:28,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:12:28,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 19:12:28,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953811456] [2025-02-06 19:12:28,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:12:28,240 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-06 19:12:28,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:28,241 INFO L85 PathProgramCache]: Analyzing trace with hash 143920, now seen corresponding path program 1 times [2025-02-06 19:12:28,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:28,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926135604] [2025-02-06 19:12:28,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:28,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:28,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:28,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:28,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:28,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:28,244 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:28,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:28,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:28,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:28,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:28,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:28,269 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:28,269 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:28,269 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:28,269 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:28,269 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:28,269 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:28,269 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:28,269 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:28,269 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2025-02-06 19:12:28,270 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:28,270 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:28,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:28,274 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:28,332 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:28,332 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:28,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:28,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:28,338 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) [2025-02-06 19:12:28,338 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 [2025-02-06 19:12:28,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:28,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:28,359 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 [2025-02-06 19:12:28,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:28,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:28,362 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) [2025-02-06 19:12:28,363 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 [2025-02-06 19:12:28,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:28,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:28,393 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:28,398 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 [2025-02-06 19:12:28,399 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:28,399 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:28,399 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:28,399 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:28,399 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:28,399 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:28,399 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:28,399 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:28,399 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2025-02-06 19:12:28,399 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:28,399 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:28,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:28,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:28,468 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:28,468 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:28,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:28,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:28,470 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) [2025-02-06 19:12:28,472 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 [2025-02-06 19:12:28,472 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 [2025-02-06 19:12:28,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:28,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:28,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:28,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:28,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:28,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:28,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:28,486 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:12:28,492 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 [2025-02-06 19:12:28,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:28,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:28,494 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2025-02-06 19:12:28,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-02-06 19:12:28,496 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 [2025-02-06 19:12:28,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:28,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:28,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:28,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:28,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:28,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:28,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:28,508 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:28,510 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:28,510 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:28,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:28,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:28,516 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2025-02-06 19:12:28,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2025-02-06 19:12:28,518 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:28,518 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:28,518 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:28,518 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2025-02-06 19:12:28,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:28,526 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:28,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:28,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 19:12:28,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 19:12:28,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:28,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:28,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:28,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:28,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:28,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:28,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:28,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:28,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:28,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:28,593 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 [2025-02-06 19:12:28,593 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 78 transitions. cyclomatic complexity: 22 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:28,604 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 78 transitions. cyclomatic complexity: 22. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 82 transitions. Complement of second has 4 states. [2025-02-06 19:12:28,604 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 [2025-02-06 19:12:28,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:28,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2025-02-06 19:12:28,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 22 letters. Loop has 3 letters. [2025-02-06 19:12:28,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:28,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 25 letters. Loop has 3 letters. [2025-02-06 19:12:28,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:28,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 22 letters. Loop has 6 letters. [2025-02-06 19:12:28,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:28,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2025-02-06 19:12:28,605 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 19:12:28,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 0 states and 0 transitions. [2025-02-06 19:12:28,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-06 19:12:28,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-06 19:12:28,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-06 19:12:28,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:12:28,606 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:12:28,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 19:12:28,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 19:12:28,606 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:28,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:12:28,606 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 19:12:28,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-06 19:12:28,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-06 19:12:28,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:12:28,606 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 19:12:28,606 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L338 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2025-02-06 19:12:28,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-06 19:12:28,606 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 19:12:28,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-06 19:12:28,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:12:28 BoogieIcfgContainer [2025-02-06 19:12:28,617 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:12:28,617 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:12:28,617 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:12:28,618 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:12:28,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:12:24" (3/4) ... [2025-02-06 19:12:28,620 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 19:12:28,621 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:12:28,622 INFO L158 Benchmark]: Toolchain (without parser) took 4648.37ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 47.7MB in the end (delta: 63.8MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2025-02-06 19:12:28,622 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:12:28,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.66ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 98.2MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 19:12:28,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.85ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:12:28,624 INFO L158 Benchmark]: Boogie Preprocessor took 24.46ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:12:28,624 INFO L158 Benchmark]: IcfgBuilder took 536.58ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 62.0MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 19:12:28,625 INFO L158 Benchmark]: BuchiAutomizer took 3839.67ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 47.7MB in the end (delta: 14.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2025-02-06 19:12:28,625 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 142.6MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:12:28,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.66ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 98.2MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.85ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.46ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 536.58ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 62.0MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3839.67ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 47.7MB in the end (delta: 14.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 142.6MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 24.1kB). 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) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 134 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 587 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 580 mSDsluCounter, 984 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 224 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 353 IncrementalHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 760 mSDtfsCounter, 353 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: 31ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 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! [2025-02-06 19:12:28,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2025-02-06 19:12:28,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2025-02-06 19:12:29,040 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 [2025-02-06 19:12:29,248 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