./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:14:40,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:14:40,294 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:14:40,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:14:40,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:14:40,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:14:40,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:14:40,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:14:40,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:14:40,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:14:40,320 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:14:40,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:14:40,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:14:40,321 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:14:40,321 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:14:40,322 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:14:40,322 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:14:40,322 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:14:40,322 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:14:40,323 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:14:40,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:14:40,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:14:40,324 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:14:40,324 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:14:40,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:14:40,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:14:40,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:14:40,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:14:40,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:14:40,325 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:14:40,326 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:14:40,326 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:14:40,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:14:40,326 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:14:40,326 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:14:40,327 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:14:40,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:14:40,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:14:40,327 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:14:40,328 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:14:40,328 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b [2024-11-17 08:14:40,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:14:40,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:14:40,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:14:40,624 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:14:40,624 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:14:40,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2024-11-17 08:14:41,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:14:42,041 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:14:42,041 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2024-11-17 08:14:42,048 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b93b563/1d6eaacecda34f89a95d9dde845b1c4b/FLAG0e727042b [2024-11-17 08:14:42,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b93b563/1d6eaacecda34f89a95d9dde845b1c4b [2024-11-17 08:14:42,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:14:42,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:14:42,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:14:42,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:14:42,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:14:42,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc4b945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42, skipping insertion in model container [2024-11-17 08:14:42,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:14:42,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:14:42,639 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:14:42,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:14:42,682 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:14:42,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42 WrapperNode [2024-11-17 08:14:42,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:14:42,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:14:42,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:14:42,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:14:42,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,755 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 419 [2024-11-17 08:14:42,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:14:42,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:14:42,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:14:42,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:14:42,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,772 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,792 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 08:14:42,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,798 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:14:42,804 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:14:42,804 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:14:42,805 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:14:42,805 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (1/1) ... [2024-11-17 08:14:42,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:42,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:42,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:42,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:14:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:14:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:14:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:14:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:14:42,948 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:14:42,950 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:14:43,780 INFO L? ?]: Removed 137 outVars from TransFormulas that were not future-live. [2024-11-17 08:14:43,781 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:14:43,845 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:14:43,845 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-17 08:14:43,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:14:43 BoogieIcfgContainer [2024-11-17 08:14:43,845 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:14:43,846 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:14:43,846 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:14:43,854 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:14:43,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:14:43,860 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:14:42" (1/3) ... [2024-11-17 08:14:43,861 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@335541df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:14:43, skipping insertion in model container [2024-11-17 08:14:43,861 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:14:43,861 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:14:42" (2/3) ... [2024-11-17 08:14:43,861 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@335541df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:14:43, skipping insertion in model container [2024-11-17 08:14:43,861 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:14:43,861 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:14:43" (3/3) ... [2024-11-17 08:14:43,862 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2024-11-17 08:14:43,936 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:14:43,936 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:14:43,936 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:14:43,936 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:14:43,936 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:14:43,936 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:14:43,936 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:14:43,936 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:14:43,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 155 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 154 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:43,985 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 30 [2024-11-17 08:14:43,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:14:43,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:14:43,995 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-17 08:14:43,999 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:14:43,999 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:14:44,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 155 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 154 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:44,014 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 30 [2024-11-17 08:14:44,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:14:44,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:14:44,021 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-17 08:14:44,021 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:14:44,030 INFO L745 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 40#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 42#L30-2true assume !(0 == base2flt_~m#1 % 4294967296); 128#L36-2true assume base2flt_~m#1 % 4294967296 < 16777216; 84#L38-4true [2024-11-17 08:14:44,031 INFO L747 eck$LassoCheckResult]: Loop: 84#L38-4true assume true; 6#L38-5true assume !false; 86#base2flt_while_0_continue#1true assume true; 56#L40-2true assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 4#L48-2true assume base2flt_~m#1 % 4294967296 < 16777216; 84#L38-4true [2024-11-17 08:14:44,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:44,039 INFO L85 PathProgramCache]: Analyzing trace with hash 10250044, now seen corresponding path program 1 times [2024-11-17 08:14:44,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:44,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53880533] [2024-11-17 08:14:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:44,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:14:44,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:14:44,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53880533] [2024-11-17 08:14:44,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53880533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:14:44,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:14:44,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:14:44,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276559275] [2024-11-17 08:14:44,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:14:44,241 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:14:44,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:44,242 INFO L85 PathProgramCache]: Analyzing trace with hash 296756048, now seen corresponding path program 1 times [2024-11-17 08:14:44,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:44,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251806252] [2024-11-17 08:14:44,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:44,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:44,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:44,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:44,323 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:44,323 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:44,323 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:44,324 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:44,324 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:14:44,324 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:44,324 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:44,324 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:44,324 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2024-11-17 08:14:44,324 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:44,324 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:44,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:44,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:44,456 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:44,457 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:14:44,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:44,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:44,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:44,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-17 08:14:44,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:14:44,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:44,489 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:14:44,489 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:14:44,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-17 08:14:44,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:44,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:44,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:44,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-17 08:14:44,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:14:44,504 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:44,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-17 08:14:44,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:44,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:44,533 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:44,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-17 08:14:44,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:14:44,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:44,562 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:14:44,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-17 08:14:44,571 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:44,571 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:44,573 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:44,573 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:44,573 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:14:44,574 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:44,574 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:44,574 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:44,574 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2024-11-17 08:14:44,574 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:44,574 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:44,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:44,583 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:44,669 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:44,672 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:14:44,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:44,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:44,675 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:44,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-17 08:14:44,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:14:44,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:14:44,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:14:44,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:14:44,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:14:44,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:14:44,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:14:44,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:14:44,694 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:14:44,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-17 08:14:44,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:44,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:44,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:44,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-17 08:14:44,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:14:44,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:14:44,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:14:44,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:14:44,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:14:44,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:14:44,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:14:44,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:14:44,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:14:44,727 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:14:44,727 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:14:44,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:44,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:44,730 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:44,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-17 08:14:44,732 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:14:44,732 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:14:44,732 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:14:44,733 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-11-17 08:14:44,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-17 08:14:44,747 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:14:44,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:44,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:14:44,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:44,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:14:44,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:44,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:14:44,852 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:14:44,854 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 155 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 154 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:45,014 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 155 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 154 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 459 states and 679 transitions. Complement of second has 6 states. [2024-11-17 08:14:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:14:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:45,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2024-11-17 08:14:45,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 446 transitions. Stem has 4 letters. Loop has 5 letters. [2024-11-17 08:14:45,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:45,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 446 transitions. Stem has 9 letters. Loop has 5 letters. [2024-11-17 08:14:45,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:45,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 446 transitions. Stem has 4 letters. Loop has 10 letters. [2024-11-17 08:14:45,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:45,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 459 states and 679 transitions. [2024-11-17 08:14:45,049 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 45 [2024-11-17 08:14:45,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 459 states to 114 states and 155 transitions. [2024-11-17 08:14:45,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 106 [2024-11-17 08:14:45,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2024-11-17 08:14:45,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 155 transitions. [2024-11-17 08:14:45,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:14:45,065 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 155 transitions. [2024-11-17 08:14:45,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 155 transitions. [2024-11-17 08:14:45,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 89. [2024-11-17 08:14:45,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 89 states have (on average 1.404494382022472) internal successors, (125), 88 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:45,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 125 transitions. [2024-11-17 08:14:45,101 INFO L240 hiAutomatonCegarLoop]: Abstraction has 89 states and 125 transitions. [2024-11-17 08:14:45,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:14:45,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:14:45,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:14:45,104 INFO L87 Difference]: Start difference. First operand 89 states and 125 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:45,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:14:45,182 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2024-11-17 08:14:45,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 52 transitions. [2024-11-17 08:14:45,182 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2024-11-17 08:14:45,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 41 states and 52 transitions. [2024-11-17 08:14:45,183 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2024-11-17 08:14:45,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2024-11-17 08:14:45,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 52 transitions. [2024-11-17 08:14:45,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:14:45,183 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-17 08:14:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 52 transitions. [2024-11-17 08:14:45,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-17 08:14:45,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2024-11-17 08:14:45,190 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-17 08:14:45,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:14:45,191 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-17 08:14:45,192 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:14:45,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 52 transitions. [2024-11-17 08:14:45,193 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2024-11-17 08:14:45,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:14:45,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:14:45,196 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:14:45,196 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:14:45,197 INFO L745 eck$LassoCheckResult]: Stem: 828#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 829#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 797#L30-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 798#L32-2 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 813#L81-2 assume true;main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 831#L30-1 assume !(0 == base2flt_~m#1 % 4294967296); 822#L36-1 assume base2flt_~m#1 % 4294967296 < 16777216; 823#L38-2 [2024-11-17 08:14:45,197 INFO L747 eck$LassoCheckResult]: Loop: 823#L38-2 assume true; 801#L38-3 assume !false; 802#base2flt_while_0_continue#2 assume true; 806#L40-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 834#L48-1 assume base2flt_~m#1 % 4294967296 < 16777216; 823#L38-2 [2024-11-17 08:14:45,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:45,199 INFO L85 PathProgramCache]: Analyzing trace with hash 414428454, now seen corresponding path program 1 times [2024-11-17 08:14:45,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:45,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661846476] [2024-11-17 08:14:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:45,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,220 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:45,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:45,239 INFO L85 PathProgramCache]: Analyzing trace with hash 249040798, now seen corresponding path program 1 times [2024-11-17 08:14:45,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:45,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693515378] [2024-11-17 08:14:45,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:45,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:45,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:45,263 INFO L85 PathProgramCache]: Analyzing trace with hash -477376103, now seen corresponding path program 1 times [2024-11-17 08:14:45,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:45,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164395208] [2024-11-17 08:14:45,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:45,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:45,361 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:45,361 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:45,361 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:45,361 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:45,361 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:14:45,361 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:45,361 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:45,361 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:45,361 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2024-11-17 08:14:45,362 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:45,362 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:45,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:45,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:45,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-17 08:14:45,546 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:45,546 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:14:45,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:45,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:45,548 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:45,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-17 08:14:45,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:14:45,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:45,574 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:14:45,574 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:14:45,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-17 08:14:45,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:45,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:45,580 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:45,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-17 08:14:45,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:14:45,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:45,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-17 08:14:45,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:45,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:45,610 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:45,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-17 08:14:45,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:14:45,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:45,640 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:14:45,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-17 08:14:45,645 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:45,645 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:45,645 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:45,646 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:45,646 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:14:45,646 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:45,646 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:45,646 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:45,646 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2024-11-17 08:14:45,646 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:45,646 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:45,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:45,654 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:45,736 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:45,737 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:14:45,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:45,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:45,739 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:45,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-17 08:14:45,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:14:45,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:14:45,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:14:45,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:14:45,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:14:45,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:14:45,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:14:45,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:14:45,756 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:14:45,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-17 08:14:45,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:45,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:45,776 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:45,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-17 08:14:45,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:14:45,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:14:45,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:14:45,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:14:45,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:14:45,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:14:45,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:14:45,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:14:45,791 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:14:45,793 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:14:45,793 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:14:45,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:45,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:45,795 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:45,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-17 08:14:45,797 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:14:45,797 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:14:45,797 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:14:45,797 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-11-17 08:14:45,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-17 08:14:45,809 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:14:45,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:45,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:14:45,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:45,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:14:45,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:45,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:14:45,860 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:14:45,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:45,881 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 52 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 96 transitions. Complement of second has 5 states. [2024-11-17 08:14:45,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:14:45,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:45,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-17 08:14:45,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 60 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-17 08:14:45,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:45,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 60 transitions. Stem has 12 letters. Loop has 5 letters. [2024-11-17 08:14:45,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:45,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 60 transitions. Stem has 7 letters. Loop has 10 letters. [2024-11-17 08:14:45,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:45,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 96 transitions. [2024-11-17 08:14:45,885 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 25 [2024-11-17 08:14:45,885 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 69 states and 86 transitions. [2024-11-17 08:14:45,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2024-11-17 08:14:45,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2024-11-17 08:14:45,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 86 transitions. [2024-11-17 08:14:45,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:14:45,886 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 86 transitions. [2024-11-17 08:14:45,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 86 transitions. [2024-11-17 08:14:45,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 46. [2024-11-17 08:14:45,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:45,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2024-11-17 08:14:45,888 INFO L240 hiAutomatonCegarLoop]: Abstraction has 46 states and 58 transitions. [2024-11-17 08:14:45,888 INFO L425 stractBuchiCegarLoop]: Abstraction has 46 states and 58 transitions. [2024-11-17 08:14:45,888 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:14:45,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 58 transitions. [2024-11-17 08:14:45,888 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2024-11-17 08:14:45,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:14:45,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:14:45,888 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:14:45,889 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:14:45,889 INFO L745 eck$LassoCheckResult]: Stem: 1005#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 1006#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 971#L30-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 972#L32-2 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 990#L81-2 assume true;main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1010#L30-1 assume !(0 == base2flt_~m#1 % 4294967296); 999#L36-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 997#L58-2 [2024-11-17 08:14:45,889 INFO L747 eck$LassoCheckResult]: Loop: 997#L58-2 assume true; 992#L58-3 assume !false; 993#base2flt_while_1_continue#2 assume true; 986#L60-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 987#L65-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 997#L58-2 [2024-11-17 08:14:45,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash 414428455, now seen corresponding path program 1 times [2024-11-17 08:14:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:45,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512186668] [2024-11-17 08:14:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,906 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:45,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:45,906 INFO L85 PathProgramCache]: Analyzing trace with hash 262401040, now seen corresponding path program 1 times [2024-11-17 08:14:45,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:45,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450755155] [2024-11-17 08:14:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:45,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:45,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:45,916 INFO L85 PathProgramCache]: Analyzing trace with hash -435386710, now seen corresponding path program 1 times [2024-11-17 08:14:45,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:45,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805594684] [2024-11-17 08:14:45,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:45,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:45,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:45,954 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:45,954 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:45,954 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:45,955 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:45,955 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:14:45,955 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:45,955 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:45,955 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:45,955 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2024-11-17 08:14:45,955 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:45,955 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:45,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:45,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,027 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:46,027 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:14:46,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,029 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-17 08:14:46,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:14:46,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:46,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-17 08:14:46,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,058 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-17 08:14:46,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:14:46,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:46,089 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:14:46,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-17 08:14:46,098 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:46,098 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:46,098 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:46,098 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:46,098 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:14:46,098 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,098 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:46,098 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:46,098 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2024-11-17 08:14:46,098 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:46,098 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:46,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,169 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:46,169 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:14:46,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,171 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-17 08:14:46,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:14:46,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:14:46,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:14:46,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:14:46,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:14:46,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:14:46,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:14:46,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:14:46,190 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:14:46,192 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:14:46,192 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:14:46,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,194 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-17 08:14:46,202 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:14:46,202 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:14:46,202 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:14:46,202 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-11-17 08:14:46,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-17 08:14:46,216 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:14:46,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:46,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:14:46,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:46,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:14:46,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:46,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:14:46,265 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:14:46,266 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 58 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:46,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 58 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 101 transitions. Complement of second has 5 states. [2024-11-17 08:14:46,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:14:46,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:46,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2024-11-17 08:14:46,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-17 08:14:46,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:46,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 12 letters. Loop has 5 letters. [2024-11-17 08:14:46,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:46,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 7 letters. Loop has 10 letters. [2024-11-17 08:14:46,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:46,291 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 101 transitions. [2024-11-17 08:14:46,292 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2024-11-17 08:14:46,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 73 states and 91 transitions. [2024-11-17 08:14:46,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2024-11-17 08:14:46,293 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2024-11-17 08:14:46,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 91 transitions. [2024-11-17 08:14:46,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:14:46,293 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 91 transitions. [2024-11-17 08:14:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 91 transitions. [2024-11-17 08:14:46,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 51. [2024-11-17 08:14:46,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 50 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2024-11-17 08:14:46,298 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 64 transitions. [2024-11-17 08:14:46,298 INFO L425 stractBuchiCegarLoop]: Abstraction has 51 states and 64 transitions. [2024-11-17 08:14:46,298 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:14:46,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 64 transitions. [2024-11-17 08:14:46,299 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-17 08:14:46,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:14:46,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:14:46,301 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:14:46,302 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:14:46,302 INFO L745 eck$LassoCheckResult]: Stem: 1190#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 1191#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1153#L30-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1154#L32-2 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 1174#L81-2 assume true;main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1197#L30-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1161#L32-1 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 1162#L81-1 assume true;main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1155#L30 assume !(0 == base2flt_~m#1 % 4294967296); 1156#L36 assume base2flt_~m#1 % 4294967296 < 16777216; 1189#L38 [2024-11-17 08:14:46,302 INFO L747 eck$LassoCheckResult]: Loop: 1189#L38 assume true; 1192#L38-1 assume !false; 1193#base2flt_while_0_continue#3 assume true; 1196#L40 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1188#L48 assume base2flt_~m#1 % 4294967296 < 16777216; 1189#L38 [2024-11-17 08:14:46,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:46,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1794906870, now seen corresponding path program 1 times [2024-11-17 08:14:46,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:46,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655705858] [2024-11-17 08:14:46,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:46,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:46,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:46,335 INFO L85 PathProgramCache]: Analyzing trace with hash 201325548, now seen corresponding path program 1 times [2024-11-17 08:14:46,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:46,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564660047] [2024-11-17 08:14:46,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:46,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,339 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:46,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:46,346 INFO L85 PathProgramCache]: Analyzing trace with hash -167848829, now seen corresponding path program 1 times [2024-11-17 08:14:46,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:46,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517331271] [2024-11-17 08:14:46,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:46,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:46,400 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:46,400 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:46,400 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:46,400 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:46,400 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:14:46,400 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,400 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:46,401 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:46,401 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2024-11-17 08:14:46,401 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:46,401 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:46,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,484 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:46,484 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:14:46,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,486 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-17 08:14:46,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:14:46,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:46,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-17 08:14:46,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,521 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-17 08:14:46,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:14:46,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:46,560 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:14:46,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-17 08:14:46,569 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:46,569 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:46,569 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:46,569 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:46,570 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:14:46,570 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,570 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:46,570 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:46,570 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2024-11-17 08:14:46,570 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:46,570 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:46,570 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,648 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:46,648 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:14:46,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,649 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-17 08:14:46,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:14:46,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:14:46,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:14:46,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:14:46,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:14:46,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:14:46,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:14:46,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:14:46,670 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:14:46,671 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:14:46,671 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:14:46,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,673 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-17 08:14:46,678 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:14:46,679 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:14:46,679 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:14:46,679 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-11-17 08:14:46,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-17 08:14:46,691 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:14:46,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:46,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:14:46,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:46,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:14:46,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:14:46,741 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:14:46,742 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 64 transitions. cyclomatic complexity: 17 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:46,748 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 64 transitions. cyclomatic complexity: 17. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 57 states and 71 transitions. Complement of second has 4 states. [2024-11-17 08:14:46,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:14:46,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:46,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2024-11-17 08:14:46,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 53 transitions. Stem has 10 letters. Loop has 5 letters. [2024-11-17 08:14:46,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:46,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 53 transitions. Stem has 15 letters. Loop has 5 letters. [2024-11-17 08:14:46,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:46,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 53 transitions. Stem has 10 letters. Loop has 10 letters. [2024-11-17 08:14:46,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:46,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 71 transitions. [2024-11-17 08:14:46,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-17 08:14:46,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 46 states and 58 transitions. [2024-11-17 08:14:46,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2024-11-17 08:14:46,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-11-17 08:14:46,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 58 transitions. [2024-11-17 08:14:46,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:14:46,751 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 58 transitions. [2024-11-17 08:14:46,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 58 transitions. [2024-11-17 08:14:46,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-17 08:14:46,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2024-11-17 08:14:46,753 INFO L240 hiAutomatonCegarLoop]: Abstraction has 46 states and 58 transitions. [2024-11-17 08:14:46,753 INFO L425 stractBuchiCegarLoop]: Abstraction has 46 states and 58 transitions. [2024-11-17 08:14:46,753 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:14:46,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 58 transitions. [2024-11-17 08:14:46,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-17 08:14:46,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:14:46,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:14:46,754 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:14:46,754 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:14:46,754 INFO L745 eck$LassoCheckResult]: Stem: 1360#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 1361#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;havoc main_#t~nondet16#1;main_~ma~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;main_~ea~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~b~0#1;havoc main_#t~nondet18#1;main_~mb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;main_~eb~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1325#L30-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1326#L32-2 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 1346#L81-2 assume true;main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1364#L30-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1333#L32-1 assume true;base2flt_#res#1 := base2flt_~__retres4~0#1; 1334#L81-1 assume true;main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1327#L30 assume !(0 == base2flt_~m#1 % 4294967296); 1328#L36 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1336#L58 [2024-11-17 08:14:46,754 INFO L747 eck$LassoCheckResult]: Loop: 1336#L58 assume true; 1337#L58-1 assume !false; 1347#base2flt_while_1_continue#3 assume true; 1365#L60 assume base2flt_~m#1 % 4294967296 >= 33554432; 1366#L65 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 1336#L58 [2024-11-17 08:14:46,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:46,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1794906869, now seen corresponding path program 1 times [2024-11-17 08:14:46,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:46,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519864205] [2024-11-17 08:14:46,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:46,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:46,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:46,767 INFO L85 PathProgramCache]: Analyzing trace with hash 214685790, now seen corresponding path program 1 times [2024-11-17 08:14:46,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:46,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172744697] [2024-11-17 08:14:46,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:46,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:46,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:46,773 INFO L85 PathProgramCache]: Analyzing trace with hash -125859436, now seen corresponding path program 1 times [2024-11-17 08:14:46,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:14:46,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953387097] [2024-11-17 08:14:46,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:14:46,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:14:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:14:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:14:46,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:14:46,807 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:46,807 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:46,808 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:46,808 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:46,808 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:14:46,808 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,808 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:46,808 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:46,808 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2024-11-17 08:14:46,808 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:46,808 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:46,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,871 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:46,871 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:14:46,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,873 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-17 08:14:46,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:14:46,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:46,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-17 08:14:46,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:46,904 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:46,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-17 08:14:46,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:14:46,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:14:46,929 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:14:46,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-17 08:14:46,934 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:14:46,934 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:14:46,936 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:14:46,937 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:14:46,937 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:14:46,937 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:46,937 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:14:46,937 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:14:46,937 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2024-11-17 08:14:46,937 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:14:46,937 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:14:46,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:46,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:14:47,001 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:14:47,002 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:14:47,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:47,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:47,003 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:47,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:14:47,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-17 08:14:47,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:14:47,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:14:47,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:14:47,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:14:47,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:14:47,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:14:47,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:14:47,019 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:14:47,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-17 08:14:47,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:47,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:47,033 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:47,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-17 08:14:47,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:14:47,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:14:47,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:14:47,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:14:47,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:14:47,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:14:47,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:14:47,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:14:47,049 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:14:47,051 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:14:47,051 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:14:47,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:14:47,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:14:47,053 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:14:47,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-17 08:14:47,055 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:14:47,055 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:14:47,055 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:14:47,055 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-11-17 08:14:47,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-17 08:14:47,067 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:14:47,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:14:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:47,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:14:47,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:14:47,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:14:47,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:14:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:14:47,127 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:14:47,127 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 58 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:47,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 58 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 51 states and 64 transitions. Complement of second has 4 states. [2024-11-17 08:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:14:47,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:14:47,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2024-11-17 08:14:47,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 46 transitions. Stem has 10 letters. Loop has 5 letters. [2024-11-17 08:14:47,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:47,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 46 transitions. Stem has 15 letters. Loop has 5 letters. [2024-11-17 08:14:47,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:47,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 46 transitions. Stem has 10 letters. Loop has 10 letters. [2024-11-17 08:14:47,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:14:47,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 64 transitions. [2024-11-17 08:14:47,140 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:14:47,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 0 states and 0 transitions. [2024-11-17 08:14:47,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:14:47,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:14:47,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:14:47,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:14:47,141 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:14:47,141 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:14:47,141 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:14:47,141 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:14:47,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-17 08:14:47,141 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:14:47,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-17 08:14:47,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:14:47 BoogieIcfgContainer [2024-11-17 08:14:47,148 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:14:47,148 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:14:47,148 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:14:47,148 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:14:47,149 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:14:43" (3/4) ... [2024-11-17 08:14:47,150 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 08:14:47,151 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:14:47,152 INFO L158 Benchmark]: Toolchain (without parser) took 4706.97ms. Allocated memory was 239.1MB in the beginning and 320.9MB in the end (delta: 81.8MB). Free memory was 200.1MB in the beginning and 142.1MB in the end (delta: 58.0MB). Peak memory consumption was 140.8MB. Max. memory is 16.1GB. [2024-11-17 08:14:47,152 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:14:47,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.02ms. Allocated memory is still 239.1MB. Free memory was 200.1MB in the beginning and 184.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-17 08:14:47,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.94ms. Allocated memory is still 239.1MB. Free memory was 184.4MB in the beginning and 181.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:14:47,152 INFO L158 Benchmark]: Boogie Preprocessor took 47.02ms. Allocated memory is still 239.1MB. Free memory was 181.2MB in the beginning and 179.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:14:47,153 INFO L158 Benchmark]: IcfgBuilder took 1041.24ms. Allocated memory is still 239.1MB. Free memory was 179.1MB in the beginning and 174.4MB in the end (delta: 4.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 08:14:47,153 INFO L158 Benchmark]: BuchiAutomizer took 3301.78ms. Allocated memory was 239.1MB in the beginning and 320.9MB in the end (delta: 81.8MB). Free memory was 174.4MB in the beginning and 142.1MB in the end (delta: 32.3MB). Peak memory consumption was 116.5MB. Max. memory is 16.1GB. [2024-11-17 08:14:47,153 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 320.9MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:14:47,154 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.02ms. Allocated memory is still 239.1MB. Free memory was 200.1MB in the beginning and 184.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.94ms. Allocated memory is still 239.1MB. Free memory was 184.4MB in the beginning and 181.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.02ms. Allocated memory is still 239.1MB. Free memory was 181.2MB in the beginning and 179.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 1041.24ms. Allocated memory is still 239.1MB. Free memory was 179.1MB in the beginning and 174.4MB in the end (delta: 4.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3301.78ms. Allocated memory was 239.1MB in the beginning and 320.9MB in the end (delta: 81.8MB). Free memory was 174.4MB in the beginning and 142.1MB in the end (delta: 32.3MB). Peak memory consumption was 116.5MB. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 320.9MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 4 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 70 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 423 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 418 mSDsluCounter, 501 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 439 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp60 ukn100 mio100 lsp100 div617 bol100 ite100 ukn100 eq135 hnf96 smp41 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-17 08:14:47,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-17 08:14:47,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-17 08:14:47,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-17 08:14:47,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-17 08:14:47,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE